<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:86f181fc-e73c-48fb-b034-d794014ac848,g:9b1e35fa-11ae-413f-a4b5-dce911ebe3d3-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.northropgrumman.com/role/ConsolidatedStatementsofEarningsandComprehensiveIncome" xlink:type="simple" xlink:href="noc-20251231.xsd#ConsolidatedStatementsofEarningsandComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/ConsolidatedStatementsofEarningsandComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_b074f3dc-69bd-4986-8267-64c0c66c09a6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cea74782-d33b-413f-94df-f6f143795276" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_b074f3dc-69bd-4986-8267-64c0c66c09a6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_cea74782-d33b-413f-94df-f6f143795276" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_41afd3e7-2800-4fd1-a5ee-08222275f93e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_b074f3dc-69bd-4986-8267-64c0c66c09a6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_41afd3e7-2800-4fd1-a5ee-08222275f93e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_f79e2a80-e13b-46cb-9825-4e409bdaed81" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_67fa6571-4ff5-4e71-ae95-88133dd8dc7f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_f79e2a80-e13b-46cb-9825-4e409bdaed81" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_67fa6571-4ff5-4e71-ae95-88133dd8dc7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5557321a-a6b2-4ff5-a636-ed00d638e704" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_f79e2a80-e13b-46cb-9825-4e409bdaed81" xlink:to="loc_us-gaap_NetIncomeLoss_5557321a-a6b2-4ff5-a636-ed00d638e704" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_13d11c16-4bd3-4b5d-9ab8-f5e2e6526ba5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:to="loc_us-gaap_OperatingIncomeLoss_13d11c16-4bd3-4b5d-9ab8-f5e2e6526ba5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_45b33b9d-8872-43f4-9792-021db83c9d3c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:to="loc_us-gaap_InterestAndDebtExpense_45b33b9d-8872-43f4-9792-021db83c9d3c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_NonOperatingFASPensionBenefit_6becd2c9-2f78-4a39-8337-c2e24143c515" xlink:href="noc-20251231.xsd#noc_NonOperatingFASPensionBenefit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:to="loc_noc_NonOperatingFASPensionBenefit_6becd2c9-2f78-4a39-8337-c2e24143c515" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_b61594a7-c42e-4651-9e8e-897c7ccadc6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_b61594a7-c42e-4651-9e8e-897c7ccadc6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_515abea6-7724-4756-b599-3efb43f0c0bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a2b91f57-9ddf-49cb-9756-daef52471aaa" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_515abea6-7724-4756-b599-3efb43f0c0bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_19be847f-2e1e-429b-9d2d-e2d81a701545" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_OtherComprehensiveIncomeLossOtherComponentsNetOfTax_a32147a9-375b-4b2c-8c2d-0de9f15ce02d" xlink:href="noc-20251231.xsd#noc_OtherComprehensiveIncomeLossOtherComponentsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_19be847f-2e1e-429b-9d2d-e2d81a701545" xlink:to="loc_noc_OtherComprehensiveIncomeLossOtherComponentsNetOfTax_a32147a9-375b-4b2c-8c2d-0de9f15ce02d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_f561d174-2283-4915-ac64-d24cd6e50fd7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_19be847f-2e1e-429b-9d2d-e2d81a701545" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_f561d174-2283-4915-ac64-d24cd6e50fd7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/ConsolidatedStatementsofFinancialPosition" xlink:type="simple" xlink:href="noc-20251231.xsd#ConsolidatedStatementsofFinancialPosition"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/ConsolidatedStatementsofFinancialPosition" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_5029153e-5b32-4492-bbf5-6437b19bc90e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_1a3ca826-4e57-4ee4-a1fc-13ae4d3c524f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_5029153e-5b32-4492-bbf5-6437b19bc90e" xlink:to="loc_us-gaap_AccountsPayableCurrent_1a3ca826-4e57-4ee4-a1fc-13ae4d3c524f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_7c3d59b5-77f7-4330-90a7-791ed2cc54ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_5029153e-5b32-4492-bbf5-6437b19bc90e" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_7c3d59b5-77f7-4330-90a7-791ed2cc54ea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_2feb1028-7109-41c3-863b-3202ed622b96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_5029153e-5b32-4492-bbf5-6437b19bc90e" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_2feb1028-7109-41c3-863b-3202ed622b96" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_ba17d2fa-b848-4e68-85c4-7ffbff29ed95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_5029153e-5b32-4492-bbf5-6437b19bc90e" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_ba17d2fa-b848-4e68-85c4-7ffbff29ed95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_fb2adea8-e1d8-4748-8bab-7f660b66aba5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:to="loc_us-gaap_PreferredStockValue_fb2adea8-e1d8-4748-8bab-7f660b66aba5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_45af4d5b-bdc0-442b-866b-3134b6ff0c4b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:to="loc_us-gaap_CommonStockValue_45af4d5b-bdc0-442b-866b-3134b6ff0c4b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_195208b5-2012-49f7-9619-0f012edeb60e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_195208b5-2012-49f7-9619-0f012edeb60e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_53cc4900-2bc6-4c15-a054-d3153cb2524b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_53cc4900-2bc6-4c15-a054-d3153cb2524b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_33d2ca63-7572-4c2f-b38c-3b4c8e71f0ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b1c4c80-0c9d-4412-b043-8074add63caa" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_33d2ca63-7572-4c2f-b38c-3b4c8e71f0ff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_71c8b935-a803-48ef-9705-8a07818c389a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_71c8b935-a803-48ef-9705-8a07818c389a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_87a0d2bb-d1d3-42b7-b7bd-dd94d683ad92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_87a0d2bb-d1d3-42b7-b7bd-dd94d683ad92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNet_863c841e-2514-4236-a3ac-b90282c69e0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:to="loc_us-gaap_ContractWithCustomerAssetNet_863c841e-2514-4236-a3ac-b90282c69e0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_a777e6d9-88f5-4aca-a09f-3bc6ce1d2ed6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:to="loc_us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings_a777e6d9-88f5-4aca-a09f-3bc6ce1d2ed6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_f4a6b911-2377-4c86-922f-2183088a6d5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_90458cd4-1b11-4f40-b9af-f998096b8a71" xlink:to="loc_us-gaap_OtherAssetsCurrent_f4a6b911-2377-4c86-922f-2183088a6d5c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_04da45f1-1367-495f-b7b5-8aae906efdd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_916b2350-0b5b-48a0-82e4-5176d069fbfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_04da45f1-1367-495f-b7b5-8aae906efdd9" xlink:to="loc_us-gaap_Liabilities_916b2350-0b5b-48a0-82e4-5176d069fbfa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_224ebee6-1a5a-442e-8bc7-29f070b3bc91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_04da45f1-1367-495f-b7b5-8aae906efdd9" xlink:to="loc_us-gaap_StockholdersEquity_224ebee6-1a5a-442e-8bc7-29f070b3bc91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_8f29b0cb-c82c-4c0a-8fc5-1c065e8d7bcc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_04da45f1-1367-495f-b7b5-8aae906efdd9" xlink:to="loc_us-gaap_CommitmentsAndContingencies_8f29b0cb-c82c-4c0a-8fc5-1c065e8d7bcc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_f8041eac-40b7-4734-b914-cf85bae698d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_AssetsCurrent_f8041eac-40b7-4734-b914-cf85bae698d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_8a78fa04-ef85-43d0-b418-7ddcec23fcea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_8a78fa04-ef85-43d0-b418-7ddcec23fcea" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_63256d14-c2e9-4c6f-890c-1cbc8c562011" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_63256d14-c2e9-4c6f-890c-1cbc8c562011" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_22e88704-a92c-401f-a18c-7aca4d280f3d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_Goodwill_22e88704-a92c-401f-a18c-7aca4d280f3d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_4db01c70-b984-46ba-a667-77890b6d37fe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_4db01c70-b984-46ba-a667-77890b6d37fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_b73df3b8-aaa4-47a4-bf40-e86f53448f43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_b73df3b8-aaa4-47a4-bf40-e86f53448f43" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_3ee802cd-7c3c-4301-8f7d-c473172a462d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c3dd4b5d-0824-43ca-a75b-a1c26214005f" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_3ee802cd-7c3c-4301-8f7d-c473172a462d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_793c6c43-6820-4b45-8d3b-1ef95bffcf5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_LiabilitiesCurrent_793c6c43-6820-4b45-8d3b-1ef95bffcf5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_ebfbfaad-335b-45f8-9a53-9f5908536003" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_ebfbfaad-335b-45f8-9a53-9f5908536003" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_42d6b7eb-74e4-415a-81ae-35defe610098" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_42d6b7eb-74e4-415a-81ae-35defe610098" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_3853357c-5672-4dfb-9010-50b5f1636120" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_3853357c-5672-4dfb-9010-50b5f1636120" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent_94d05d7f-b2e3-4ed7-9b68-1b08c09f1872" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent_94d05d7f-b2e3-4ed7-9b68-1b08c09f1872" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_e9075c84-2ae3-45f3-8080-2c755f603866" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_f4c473eb-99db-4d85-83c2-c3a54b8a93d4" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_e9075c84-2ae3-45f3-8080-2c755f603866" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="noc-20251231.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_57fdb404-60d2-4f43-8723-55d14d475c91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b3dadc24-009b-47ad-b8e8-4d8a17a481a0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_57fdb404-60d2-4f43-8723-55d14d475c91" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_b3dadc24-009b-47ad-b8e8-4d8a17a481a0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a513a82c-3b6e-4ea8-ac7f-e018bf4b81d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_57fdb404-60d2-4f43-8723-55d14d475c91" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_a513a82c-3b6e-4ea8-ac7f-e018bf4b81d7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_412e9760-0551-4abc-b5a1-a296e58a8d73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_57fdb404-60d2-4f43-8723-55d14d475c91" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_412e9760-0551-4abc-b5a1-a296e58a8d73" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_efcb3eec-1cb0-4a4e-b0f7-613e0d3715e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f6a9e2f2-ba6f-4a9b-97dd-5b912fa431c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_efcb3eec-1cb0-4a4e-b0f7-613e0d3715e0" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_f6a9e2f2-ba6f-4a9b-97dd-5b912fa431c8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_906924ea-2b3d-41eb-b7dd-9393efd35467" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_efcb3eec-1cb0-4a4e-b0f7-613e0d3715e0" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_906924ea-2b3d-41eb-b7dd-9393efd35467" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_8bcdb7fb-aaa7-42f1-ad23-d94003ee1800" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_efcb3eec-1cb0-4a4e-b0f7-613e0d3715e0" xlink:to="loc_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments_8bcdb7fb-aaa7-42f1-ad23-d94003ee1800" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_46bd7d0f-0c01-4a2f-9624-02a432385242" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_efcb3eec-1cb0-4a4e-b0f7-613e0d3715e0" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_46bd7d0f-0c01-4a2f-9624-02a432385242" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6e4816ed-3707-435c-9241-f7114314c85d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_NetIncomeLoss_6e4816ed-3707-435c-9241-f7114314c85d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_a45c19ee-f365-47ed-9c23-5c7dc24acd4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DepreciationAmortizationAndAccretionNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_DepreciationAmortizationAndAccretionNet_a45c19ee-f365-47ed-9c23-5c7dc24acd4c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_563879d3-9256-472e-8534-db41fbc0bc6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash_563879d3-9256-472e-8534-db41fbc0bc6f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_6a5ae9ab-796e-4342-be9d-d5b67b5aa021" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_ShareBasedCompensation_6a5ae9ab-796e-4342-be9d-d5b67b5aa021" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_289b285c-9f25-4575-acde-7f6e03233ada" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndTaxCredits_289b285c-9f25-4575-acde-7f6e03233ada" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_09336cb3-9510-4856-b50c-5d81d18120d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_09336cb3-9510-4856-b50c-5d81d18120d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitContributions_9d5bed9b-eb84-4538-ac24-346d2a011a0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementBenefitContributions"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitContributions_9d5bed9b-eb84-4538-ac24-346d2a011a0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_e76330aa-3eea-40bb-bea9-40de31b5e82d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_e76330aa-3eea-40bb-bea9-40de31b5e82d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_05edff14-1693-43b2-bf02-bfa418eb9713" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerAsset"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerAsset_05edff14-1693-43b2-bf02-bfa418eb9713" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_ea9fb4e1-d1f3-4fb6-bd5f-24c5ffac2a95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_ea9fb4e1-d1f3-4fb6-bd5f-24c5ffac2a95" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_3313c42a-b919-4429-9d68-3d61aad7fe91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_3313c42a-b919-4429-9d68-3d61aad7fe91" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_9327379f-c443-44a4-9b30-59330fb0a435" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_9327379f-c443-44a4-9b30-59330fb0a435" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0df1e0b3-86f7-4710-b29f-1cd72f4cf851" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0df1e0b3-86f7-4710-b29f-1cd72f4cf851" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_b48f0c06-12ab-424d-ad30-8638e7449a4e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherAccruedLiabilities"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_b48f0c06-12ab-424d-ad30-8638e7449a4e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_e3b90f2a-7574-426a-aac5-fa2e84148cac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_e3b90f2a-7574-426a-aac5-fa2e84148cac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_7e6e6529-a728-4cb1-b972-6cc631fc8841" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_7e6e6529-a728-4cb1-b972-6cc631fc8841" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyLossInPeriod_abd56ff1-b5e2-437f-96b1-da4995cd9956" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyLossInPeriod"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_LossContingencyLossInPeriod_abd56ff1-b5e2-437f-96b1-da4995cd9956" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_74872b83-f786-4bae-a49e-b6adef7e642c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1452f763-5790-4c10-bb12-64ffcb01d42b" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_74872b83-f786-4bae-a49e-b6adef7e642c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_199aadee-71b5-4f17-8c3b-4155b9d585aa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_199aadee-71b5-4f17-8c3b-4155b9d585aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_da6dd3ca-e92a-4161-9925-1691ca61b2e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_da6dd3ca-e92a-4161-9925-1691ca61b2e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_5006e834-ca84-4563-81d3-926fa7537b3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_5006e834-ca84-4563-81d3-926fa7537b3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_600d90b6-dadd-43bd-b6e0-feca9fcc1efa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_600d90b6-dadd-43bd-b6e0-feca9fcc1efa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b1689509-27df-45c0-8812-6aa517361f09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_b1689509-27df-45c0-8812-6aa517361f09" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_f6219862-021d-4d31-9cf3-e1bcdc09db5a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_f6219862-021d-4d31-9cf3-e1bcdc09db5a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9425943f-b7ef-4ccc-9133-9e666080228d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9425943f-b7ef-4ccc-9133-9e666080228d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_f80df070-2dc4-4cde-ba68-2e0f19ea1b94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_14bd49c9-4496-444d-a253-7059273b1783" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_f80df070-2dc4-4cde-ba68-2e0f19ea1b94" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/SummaryofSignificantAccountingPoliciesPropertyPlantandEquipmentDetails2" xlink:type="simple" xlink:href="noc-20251231.xsd#SummaryofSignificantAccountingPoliciesPropertyPlantandEquipmentDetails2"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/SummaryofSignificantAccountingPoliciesPropertyPlantandEquipmentDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_05a9d28a-9391-40e1-8c6f-03aef333eae9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_e410a1d1-d774-4f11-819a-1919eccf8c2f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_05a9d28a-9391-40e1-8c6f-03aef333eae9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_e410a1d1-d774-4f11-819a-1919eccf8c2f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_518730a5-4a98-4b0c-aae2-bcb9453ce0d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_05a9d28a-9391-40e1-8c6f-03aef333eae9" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_518730a5-4a98-4b0c-aae2-bcb9453ce0d1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/SummaryofSignificantAccountingPoliciesAccumulatedOtherComprehensiveIncomeLossDetails4" xlink:type="simple" xlink:href="noc-20251231.xsd#SummaryofSignificantAccountingPoliciesAccumulatedOtherComprehensiveIncomeLossDetails4"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/SummaryofSignificantAccountingPoliciesAccumulatedOtherComprehensiveIncomeLossDetails4" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_314e7fb2-d680-4518-b32f-8bd42c7f9e75" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_AccumulatedOtherComprehensiveIncomeLossOtherComponentsNetOfTax_cd933501-9681-4f76-8e8b-b14ee68551d4" xlink:href="noc-20251231.xsd#noc_AccumulatedOtherComprehensiveIncomeLossOtherComponentsNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_314e7fb2-d680-4518-b32f-8bd42c7f9e75" xlink:to="loc_noc_AccumulatedOtherComprehensiveIncomeLossOtherComponentsNetOfTax_cd933501-9681-4f76-8e8b-b14ee68551d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_54b5ec84-6d0e-4305-b620-0545fcd423c7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_314e7fb2-d680-4518-b32f-8bd42c7f9e75" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_54b5ec84-6d0e-4305-b620-0545fcd423c7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/AccountsReceivableNetDetails" xlink:type="simple" xlink:href="noc-20251231.xsd#AccountsReceivableNetDetails"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/AccountsReceivableNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_4423f4cc-5fb6-4188-9396-462084d640b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_efa8287e-21e9-4a36-b4b6-0fd794350585" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_4423f4cc-5fb6-4188-9396-462084d640b7" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_efa8287e-21e9-4a36-b4b6-0fd794350585" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_45dd006a-33c6-488b-ba5c-0780282cdf0e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_4423f4cc-5fb6-4188-9396-462084d640b7" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_45dd006a-33c6-488b-ba5c-0780282cdf0e" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/UnbilledReceivablesNetDetails" xlink:type="simple" xlink:href="noc-20251231.xsd#UnbilledReceivablesNetDetails"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/UnbilledReceivablesNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNet_bcf7b152-4e0f-4d1e-b0dd-34c6d4f78a50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetGross_879cac91-7c27-4f6e-842a-140e391748a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerAssetNet_bcf7b152-4e0f-4d1e-b0dd-34c6d4f78a50" xlink:to="loc_us-gaap_ContractWithCustomerAssetGross_879cac91-7c27-4f6e-842a-140e391748a4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss_b7a4f484-193d-4d09-a965-6af0edd3e281" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ContractWithCustomerAssetNet_bcf7b152-4e0f-4d1e-b0dd-34c6d4f78a50" xlink:to="loc_us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss_b7a4f484-193d-4d09-a965-6af0edd3e281" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/InventoriedCostsNetDetails" xlink:type="simple" xlink:href="noc-20251231.xsd#InventoriedCostsNetDetails"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/InventoriedCostsNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_fec55f6f-6b94-47d9-abd3-d78fb9692caa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_3ca63354-1509-4d84-b2e7-92cc8a62c409" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_fec55f6f-6b94-47d9-abd3-d78fb9692caa" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_3ca63354-1509-4d84-b2e7-92cc8a62c409" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_4d4e9d70-956d-49c5-8688-6359eda84cef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_fec55f6f-6b94-47d9-abd3-d78fb9692caa" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_4d4e9d70-956d-49c5-8688-6359eda84cef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_2a7197b1-697d-4c29-a746-0fd05fc8e8c3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_fec55f6f-6b94-47d9-abd3-d78fb9692caa" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_2a7197b1-697d-4c29-a746-0fd05fc8e8c3" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails4" xlink:type="simple" xlink:href="noc-20251231.xsd#IncomeTaxesUnrecognizedTaxBenefitsDetails4"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails4" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_a8238347-4d63-4e7e-920f-0d7a74bb5e92" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_a8238347-4d63-4e7e-920f-0d7a74bb5e92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_886f6e8d-4cd1-4d29-97fc-c46057044fff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_886f6e8d-4cd1-4d29-97fc-c46057044fff" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_47e00d69-6338-4729-aff6-e8bde6a5d6a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_47e00d69-6338-4729-aff6-e8bde6a5d6a8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_33d2a67f-036f-4fdc-99a4-f7dc7fffccf6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_33d2a67f-036f-4fdc-99a4-f7dc7fffccf6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_cbc8f2f8-f8cb-4187-ad72-74fda69d10d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease_4fb2fff7-b0d7-42a4-8b83-8d9bf5729652" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_cbc8f2f8-f8cb-4187-ad72-74fda69d10d1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/IncomeTaxesDeferredIncomeTaxesDetails5" xlink:type="simple" xlink:href="noc-20251231.xsd#IncomeTaxesDeferredIncomeTaxesDetails5"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/IncomeTaxesDeferredIncomeTaxesDetails5" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_899dbddb-31f4-426c-afae-ad305749d9ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_661a9478-0b60-4a1a-993f-f1dd3e77da65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_899dbddb-31f4-426c-afae-ad305749d9ae" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_661a9478-0b60-4a1a-993f-f1dd3e77da65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_a19d857e-d3ba-41bf-8656-e904bb6de8e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_899dbddb-31f4-426c-afae-ad305749d9ae" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_a19d857e-d3ba-41bf-8656-e904bb6de8e3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_322b9cac-8ffa-4efd-9420-e4ebebd9b1f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_aed1c934-764a-434d-8927-40ee80163a34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_322b9cac-8ffa-4efd-9420-e4ebebd9b1f6" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_aed1c934-764a-434d-8927-40ee80163a34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_7ecb27b9-83d4-4a48-b7ca-c8b7694e0b61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_322b9cac-8ffa-4efd-9420-e4ebebd9b1f6" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_7ecb27b9-83d4-4a48-b7ca-c8b7694e0b61" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_531a96de-7654-40f5-bfe4-55c7100cdc0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsOther"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_531a96de-7654-40f5-bfe4-55c7100cdc0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_c8e2965e-ab52-41ac-b55b-d439362e68ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_c8e2965e-ab52-41ac-b55b-d439362e68ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_DeferredTaxAssetLeaseLiabilities_e8b90b03-5c7e-4d72-a275-a9ebe2c8e66c" xlink:href="noc-20251231.xsd#noc_DeferredTaxAssetLeaseLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_noc_DeferredTaxAssetLeaseLiabilities_e8b90b03-5c7e-4d72-a275-a9ebe2c8e66c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_a52b8c75-8975-4363-bdd7-782a6598c12a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_a52b8c75-8975-4363-bdd7-782a6598c12a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsInventory_9bcb8746-ab69-4b15-a9bc-c08b5564b3cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsInventory"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsInventory_9bcb8746-ab69-4b15-a9bc-c08b5564b3cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_903c5745-4cbc-46ab-a93e-0fdbe0f4d1d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_903c5745-4cbc-46ab-a93e-0fdbe0f4d1d9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_4bd9fba9-a4e3-4405-9ea0-3577d1c3407a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_4bd9fba9-a4e3-4405-9ea0-3577d1c3407a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_764dc99d-ea6f-42d5-9cb7-67dc18a97ec5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_764dc99d-ea6f-42d5-9cb7-67dc18a97ec5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_DeferredTaxAssetREExpenditureCapitalization_9c48375c-54d5-410c-a046-9c0220a8bf11" xlink:href="noc-20251231.xsd#noc_DeferredTaxAssetREExpenditureCapitalization"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_9d3fff9c-55bd-44ea-92ab-9531acc292c9" xlink:to="loc_noc_DeferredTaxAssetREExpenditureCapitalization_9c48375c-54d5-410c-a046-9c0220a8bf11" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredIncomeTaxLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_b697a054-5b98-4acf-a826-1a2ec129a724" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_b697a054-5b98-4acf-a826-1a2ec129a724" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_f7e0c343-b4b1-428f-be29-be95eec992c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_f7e0c343-b4b1-428f-be29-be95eec992c9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_bfe23aac-1c66-4a7f-bc76-9c1f436bff47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesLeasingArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesLeasingArrangements_bfe23aac-1c66-4a7f-bc76-9c1f436bff47" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_1ee17239-32db-4839-92d0-67d3d5aab84f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_1ee17239-32db-4839-92d0-67d3d5aab84f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_DeferredTaxLiabilitiesPurchaseIntangibles_f6c255ef-a45c-498a-b26c-dc2ba474f40b" xlink:href="noc-20251231.xsd#noc_DeferredTaxLiabilitiesPurchaseIntangibles"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_noc_DeferredTaxLiabilitiesPurchaseIntangibles_f6c255ef-a45c-498a-b26c-dc2ba474f40b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_23f10296-a68a-4120-8d9f-665a3a2b90b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_23f10296-a68a-4120-8d9f-665a3a2b90b9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_noc_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_b372a5ae-788c-4f57-9082-c24ede18cce8" xlink:href="noc-20251231.xsd#noc_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_e92f8558-d76e-4d30-9673-9a03f5737da3" xlink:to="loc_noc_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits_b372a5ae-788c-4f57-9082-c24ede18cce8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/GoodwillandOtherPurchasedIntangibleAssetsOtherPurchasedIntangibleAssetsDetails2" xlink:type="simple" xlink:href="noc-20251231.xsd#GoodwillandOtherPurchasedIntangibleAssetsOtherPurchasedIntangibleAssetsDetails2"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/GoodwillandOtherPurchasedIntangibleAssetsOtherPurchasedIntangibleAssetsDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d5cf4956-0f06-4262-be78-a09e1ebd8db6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_8d5c08f2-8f42-4ed1-b72d-0182f72ef770" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d5cf4956-0f06-4262-be78-a09e1ebd8db6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_8d5c08f2-8f42-4ed1-b72d-0182f72ef770" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_377d9087-ae11-490f-a67c-a2a1ef1b9fd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d5cf4956-0f06-4262-be78-a09e1ebd8db6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_377d9087-ae11-490f-a67c-a2a1ef1b9fd6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/DebtFixedrateNotesandOtherDetails1" xlink:type="simple" xlink:href="noc-20251231.xsd#DebtFixedrateNotesandOtherDetails1"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/DebtFixedrateNotesandOtherDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_7c9bd0e8-680a-4366-809e-65712dda435d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_2e5568a8-7b99-4099-ba75-f1d5ac300885" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_7c9bd0e8-680a-4366-809e-65712dda435d" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_2e5568a8-7b99-4099-ba75-f1d5ac300885" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_9b43ea5b-f341-46e1-9868-53ad2fe8b573" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_7c9bd0e8-680a-4366-809e-65712dda435d" xlink:to="loc_us-gaap_LongTermDebtCurrent_9b43ea5b-f341-46e1-9868-53ad2fe8b573" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/DebtMaturitiesofLongtermDebtDetails2" xlink:type="simple" xlink:href="noc-20251231.xsd#DebtMaturitiesofLongtermDebtDetails2"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/DebtMaturitiesofLongtermDebtDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_62188cc4-00bd-4aa2-b598-89a4aa043ded" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_0be5c257-431c-40d0-aaf0-8627d56bbd86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_62188cc4-00bd-4aa2-b598-89a4aa043ded" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_0be5c257-431c-40d0-aaf0-8627d56bbd86" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_ecd4001f-586c-4807-af98-a73e0e0bb798" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_62188cc4-00bd-4aa2-b598-89a4aa043ded" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_ecd4001f-586c-4807-af98-a73e0e0bb798" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_95e2afdc-b07e-49c4-9f16-0c8ef1e597ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_62188cc4-00bd-4aa2-b598-89a4aa043ded" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_95e2afdc-b07e-49c4-9f16-0c8ef1e597ef" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_e788ff4e-6261-43b7-be46-7f90ae64acaf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_e788ff4e-6261-43b7-be46-7f90ae64acaf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_6609c1cf-613f-490f-942c-db7c8f84c611" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_6609c1cf-613f-490f-942c-db7c8f84c611" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_e3e54361-ad09-433f-9908-2011a0eafb3a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_e3e54361-ad09-433f-9908-2011a0eafb3a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_8dba90db-6b21-40cf-96ff-19302618f55f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_8dba90db-6b21-40cf-96ff-19302618f55f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_64d06797-4d05-4dfb-b7b7-b2a0203fff06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive_64d06797-4d05-4dfb-b7b7-b2a0203fff06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_a4f16b48-4fdb-4e09-9d20-35c81abb71d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_aa364b3a-eb44-434a-860e-fcf0f9e49cc2" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_a4f16b48-4fdb-4e09-9d20-35c81abb71d7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/RetirementBenefitsNetPeriodicBenefitCostBenefitDetails1" xlink:type="simple" xlink:href="noc-20251231.xsd#RetirementBenefitsNetPeriodicBenefitCostBenefitDetails1"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/RetirementBenefitsNetPeriodicBenefitCostBenefitDetails1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_2256e012-31df-4e57-9c03-56b99a751fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_2256e012-31df-4e57-9c03-56b99a751fb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_6e5588f7-f81b-4b15-882b-00587c09354b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_6e5588f7-f81b-4b15-882b-00587c09354b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_f66c0f1b-03d5-42f6-84ee-d3e6c5de944f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_f66c0f1b-03d5-42f6-84ee-d3e6c5de944f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_1ea9f33e-36d4-428e-b2f5-59e914afc62c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_1ea9f33e-36d4-428e-b2f5-59e914afc62c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_9d490c5d-ef99-4395-969f-6459708cdb1a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit_9d490c5d-ef99-4395-969f-6459708cdb1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanOtherCosts_6beda331-0c3f-44df-acb0-8c13f9a18a55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedBenefitPlanOtherCosts"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_043001bc-f6b8-40c0-977f-d2a83a562b18" xlink:to="loc_us-gaap_DefinedBenefitPlanOtherCosts_6beda331-0c3f-44df-acb0-8c13f9a18a55" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/RetirementBenefitsUnamortizedPriorServiceCreditRollforwardDetails2" xlink:type="simple" xlink:href="noc-20251231.xsd#RetirementBenefitsUnamortizedPriorServiceCreditRollforwardDetails2"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/RetirementBenefitsUnamortizedPriorServiceCreditRollforwardDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b21092-21a3-44b9-ab05-05748d328015" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax_80d6aa30-db41-45bb-9a52-285a1b16a313" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b21092-21a3-44b9-ab05-05748d328015" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax_80d6aa30-db41-45bb-9a52-285a1b16a313" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_1d990a1f-9fad-42ee-a1f7-d3309c232076" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b21092-21a3-44b9-ab05-05748d328015" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_1d990a1f-9fad-42ee-a1f7-d3309c232076" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax_cad43b7a-9cdb-4cd0-9183-864066f55d65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_17b21092-21a3-44b9-ab05-05748d328015" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax_cad43b7a-9cdb-4cd0-9183-864066f55d65" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.northropgrumman.com/role/LeasesBalanceSheetDetails2" xlink:type="simple" xlink:href="noc-20251231.xsd#LeasesBalanceSheetDetails2"/>
  <link:calculationLink xlink:role="http://www.northropgrumman.com/role/LeasesBalanceSheetDetails2" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_4057527e-435c-4fef-a0a7-40bb379dac41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_6fd6a5ae-c924-4346-885e-1690bdb9408b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_4057527e-435c-4fef-a0a7-40bb379dac41" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_6fd6a5ae-c924-4346-885e-1690bdb9408b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_007d0b15-7d1a-4a19-b54f-404623922fe6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeaseLiability_4057527e-435c-4fef-a0a7-40bb379dac41" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_007d0b15-7d1a-4a19-b54f-404623922fe6" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
