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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f945c-3124-7768-9f2f-ba5f28846608,g:b4011b47-a8f9-46cd-8212-bdda9e89200b-->
<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:arcroleRef arcroleURI="https://xbrl.org/2023/arcrole/summation-item" xlink:type="simple" xlink:href="https://www.xbrl.org/2023/calculation-1.1.xsd#summation-item"/>
  <link:roleRef roleURI="http://www.jefferies.com/role/ConsolidatedStatementsofFinancialConditionUnaudited" xlink:type="simple" xlink:href="jef-20260831.xsd#ConsolidatedStatementsofFinancialConditionUnaudited"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/ConsolidatedStatementsofFinancialConditionUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019f945c-39cf-7eea-b757-e3c3f9a89204" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_019f945c-39cf-7eea-b757-e3c3f9a89204" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019f945c-39cf-73e0-8bd1-e2ef5e4770d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:to="loc_us-gaap_CommonStockValue_019f945c-39cf-73e0-8bd1-e2ef5e4770d0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019f945c-39cf-7c8d-b15b-a7dbe0f52b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_019f945c-39cf-7c8d-b15b-a7dbe0f52b7d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f945c-39cf-75ab-a882-e2a4162540e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019f945c-39cf-75ab-a882-e2a4162540e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019f945c-39cf-7056-8d40-b8bc136314cf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_019f945c-39cf-786c-9265-e26e0e5050db" xlink:to="loc_us-gaap_PreferredStockValue_019f945c-39cf-7056-8d40-b8bc136314cf" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f945c-39cf-7063-b5eb-9fa1bbf0ef3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019f945c-39cf-74f6-979a-7166a221e463" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f945c-39cf-7063-b5eb-9fa1bbf0ef3e" xlink:to="loc_us-gaap_StockholdersEquity_019f945c-39cf-74f6-979a-7166a221e463" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019f945c-39cf-7053-8e42-57a10efe79f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f945c-39cf-7063-b5eb-9fa1bbf0ef3e" xlink:to="loc_us-gaap_MinorityInterest_019f945c-39cf-7053-8e42-57a10efe79f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_019f945c-39cf-773d-b83f-5443e2aa1338" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_019f945c-39cf-773d-b83f-5443e2aa1338" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_FeesInterestAndOther_019f945c-39cf-7ea3-a977-ddf0407860df" xlink:href="jef-20260831.xsd#jef_FeesInterestAndOther"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_jef_FeesInterestAndOther_019f945c-39cf-7ea3-a977-ddf0407860df" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_019f945c-39cf-7526-92c9-32548f3e20a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentsOwnedAtFairValue"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_FinancialInstrumentsOwnedAtFairValue_019f945c-39cf-7526-92c9-32548f3e20a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation_019f945c-39cf-75b5-ac5f-c2f1ce7a14af" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_CashAndSecuritiesSegregatedUnderSecuritiesExchangeCommissionRegulation_019f945c-39cf-75b5-ac5f-c2f1ce7a14af" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f945c-39cf-7b38-a295-d8471fc4981d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f945c-39cf-7b38-a295-d8471fc4981d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivablesFromCustomers_019f945c-39cf-734e-b869-da9ef4398622" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ReceivablesFromCustomers"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_ReceivablesFromCustomers_019f945c-39cf-734e-b869-da9ef4398622" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowed_019f945c-39cf-7c6e-b0e4-9af0df282806" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowed"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_SecuritiesBorrowed_019f945c-39cf-7c6e-b0e4-9af0df282806" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssets_019f945c-39cf-75b8-893c-e330883f1960" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssets"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_OtherAssets_019f945c-39cf-75b8-893c-e330883f1960" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019f945c-39cf-7859-bfb7-75ca4bab9781" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_Goodwill_019f945c-39cf-7859-bfb7-75ca4bab9781" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_019f945c-39cf-7f67-a513-98876be0069e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_019f945c-39cf-7f67-a513-98876be0069e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_PropertyPlantAndEquipmentAndOperatingLeaseRightofUseAssetAfterAccumulatedDepreciationAndAmortization_019f945c-39cf-73bb-b6e1-13eb1e552811" xlink:href="jef-20260831.xsd#jef_PropertyPlantAndEquipmentAndOperatingLeaseRightofUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_jef_PropertyPlantAndEquipmentAndOperatingLeaseRightofUseAssetAfterAccumulatedDepreciationAndAmortization_019f945c-39cf-73bb-b6e1-13eb1e552811" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesReceivedAsCollateral_019f945c-39cf-76a7-9c75-8f701c876eb7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesReceivedAsCollateral"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_SecuritiesReceivedAsCollateral_019f945c-39cf-76a7-9c75-8f701c876eb7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-39cf-748a-bd4c-421654e80fbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResell"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-39cf-748a-bd4c-421654e80fbb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39cf-7888-bfcb-daa3b0cd70ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_019f945c-39cf-7a8b-82f8-321b56251753" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39cf-7888-bfcb-daa3b0cd70ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f945c-39cf-77e7-ad6c-49723e5474a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019f945c-39cf-75f0-85a4-f1813b6e628a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f945c-39cf-77e7-ad6c-49723e5474a7" xlink:to="loc_us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount_019f945c-39cf-75f0-85a4-f1813b6e628a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019f945c-39cf-724d-890e-0c7ec59ba6ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f945c-39cf-77e7-ad6c-49723e5474a7" xlink:to="loc_us-gaap_Liabilities_019f945c-39cf-724d-890e-0c7ec59ba6ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f945c-39cf-785a-ba7e-1dda3786e9ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_019f945c-39cf-77e7-ad6c-49723e5474a7" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019f945c-39cf-785a-ba7e-1dda3786e9ae" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_019f945c-39cf-74c3-bd61-242fff949678" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue_019f945c-39cf-74c3-bd61-242fff949678" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_019f945c-39cf-74f1-81b5-08896d95f94e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_OtherShortTermBorrowings_019f945c-39cf-74f1-81b5-08896d95f94e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSecuredFinancings_019f945c-39cf-7831-85ec-dbd0a6bedde2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherSecuredFinancings"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_OtherSecuredFinancings_019f945c-39cf-7831-85ec-dbd0a6bedde2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019f945c-39cf-74f1-b6e7-0da81ffa8f3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_019f945c-39cf-74f1-b6e7-0da81ffa8f3b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ObligationToReturnSecuritiesReceivedAsCollateral_019f945c-39cf-7f1f-9772-38443a66d1fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ObligationToReturnSecuritiesReceivedAsCollateral"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_ObligationToReturnSecuritiesReceivedAsCollateral_019f945c-39cf-7f1f-9772-38443a66d1fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019f945c-39cf-71f4-a525-eb41c333f017" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_LongTermDebt_019f945c-39cf-71f4-a525-eb41c333f017" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_PayablesToCustomers_019f945c-39cf-7987-ba1c-274dd8b437f0" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_PayablesToCustomers"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_srt_PayablesToCustomers_019f945c-39cf-7987-ba1c-274dd8b437f0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OperatingLeaseAndFinanceLeaseLiability_019f945c-39cf-7b6d-86e8-84fd82d70ff3" xlink:href="jef-20260831.xsd#jef_OperatingLeaseAndFinanceLeaseLiability"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_jef_OperatingLeaseAndFinanceLeaseLiability_019f945c-39cf-7b6d-86e8-84fd82d70ff3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoaned_019f945c-39cf-7b46-ae4c-6d0ec06558b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoaned"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_SecuritiesLoaned_019f945c-39cf-7b46-ae4c-6d0ec06558b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_019f945c-39cf-72f1-816c-21a731e40737" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_019f945c-39cf-72f1-816c-21a731e40737" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_PayablesToBrokerDealersAndClearingOrganizations_019f945c-39cf-7247-93be-06804c7edf2d" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_PayablesToBrokerDealersAndClearingOrganizations"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_srt_PayablesToBrokerDealersAndClearingOrganizations_019f945c-39cf-7247-93be-06804c7edf2d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39cf-7aa8-8a6a-9a24b63661b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_019f945c-39cf-74af-bef3-9bb765596a11" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39cf-7aa8-8a6a-9a24b63661b5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/ConsolidatedStatementsofEarningsUnaudited" xlink:type="simple" xlink:href="jef-20260831.xsd#ConsolidatedStatementsofEarningsUnaudited"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/ConsolidatedStatementsofEarningsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f945c-39d0-7cda-ae1b-2b7c3e4f8362" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-39d0-775a-bc18-eb4fdda9d53b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019f945c-39d0-7cda-ae1b-2b7c3e4f8362" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-39d0-775a-bc18-eb4fdda9d53b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019f945c-39d0-7a2d-9885-3dec08f76ffd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ProfitLoss_019f945c-39d0-7cda-ae1b-2b7c3e4f8362" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019f945c-39d0-7a2d-9885-3dec08f76ffd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesNetOfInterestExpense_019f945c-39d0-7064-9f88-380b2948d062" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesNetOfInterestExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019f945c-39d0-72ea-86d9-16d33a8ac449" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RevenuesNetOfInterestExpense_019f945c-39d0-7064-9f88-380b2948d062" xlink:to="loc_us-gaap_Revenues_019f945c-39d0-72ea-86d9-16d33a8ac449" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseOperating_019f945c-39d0-70bf-ad69-8537b429c25b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestExpenseOperating"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_RevenuesNetOfInterestExpense_019f945c-39d0-7064-9f88-380b2948d062" xlink:to="loc_us-gaap_InterestExpenseOperating_019f945c-39d0-70bf-ad69-8537b429c25b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommunicationsAndInformationTechnology_019f945c-39d0-71d0-9315-68056905fefa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommunicationsAndInformationTechnology"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_CommunicationsAndInformationTechnology_019f945c-39d0-71d0-9315-68056905fefa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_019f945c-39d0-7650-a101-4876255f416a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_019f945c-39d0-7650-a101-4876255f416a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees_019f945c-39d0-7343-8482-9675e95d7fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FloorBrokerageExchangeAndClearanceFees"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_FloorBrokerageExchangeAndClearanceFees_019f945c-39d0-7343-8482-9675e95d7fd1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OccupancyNet_019f945c-39d0-7b3f-a53f-c9d79474cf7c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OccupancyNet"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_OccupancyNet_019f945c-39d0-7b3f-a53f-c9d79474cf7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_UnderwritingCosts_019f945c-39d0-788e-b2dd-078cb1c727eb" xlink:href="jef-20260831.xsd#jef_UnderwritingCosts"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_jef_UnderwritingCosts_019f945c-39d0-788e-b2dd-078cb1c727eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_019f945c-39d0-7cd0-9954-88ed0c18ef38" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_LaborAndRelatedExpense_019f945c-39d0-7cd0-9954-88ed0c18ef38" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees_019f945c-39d0-7b02-ab18-2e5cbcaa04ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfessionalFees"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_ProfessionalFees_019f945c-39d0-7b02-ab18-2e5cbcaa04ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherExpenses_019f945c-39d0-76d2-a682-cc3dc186867f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherExpenses"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_OtherExpenses_019f945c-39d0-76d2-a682-cc3dc186867f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_019f945c-39d0-7e34-a9da-f3211299a6e0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_019f945c-39d0-7e34-a9da-f3211299a6e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessDevelopment_019f945c-39d0-7204-bd69-5b5c906f830a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessDevelopment"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NoninterestExpense_019f945c-39d0-7969-9170-4d75c5342ad0" xlink:to="loc_us-gaap_BusinessDevelopment_019f945c-39d0-7204-bd69-5b5c906f830a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_NetIncomeLossAndPreferredStockDividendsIncomeStatementImpact_019f945c-39d0-79b6-a27a-69d06697b4ce" xlink:href="jef-20260831.xsd#jef_NetIncomeLossAndPreferredStockDividendsIncomeStatementImpact"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f945c-39d0-7b1a-93bb-87de87f30101" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_NetIncomeLossAndPreferredStockDividendsIncomeStatementImpact_019f945c-39d0-79b6-a27a-69d06697b4ce" xlink:to="loc_us-gaap_ProfitLoss_019f945c-39d0-7b1a-93bb-87de87f30101" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest_019f945c-39d0-7920-ac56-069ffc244556" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_NetIncomeLossAndPreferredStockDividendsIncomeStatementImpact_019f945c-39d0-79b6-a27a-69d06697b4ce" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest_019f945c-39d0-7920-ac56-069ffc244556" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f945c-39d0-7ece-9765-2ad3829ba143" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_NetIncomeLossAndPreferredStockDividendsIncomeStatementImpact_019f945c-39d0-79b6-a27a-69d06697b4ce" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f945c-39d0-7ece-9765-2ad3829ba143" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-39d0-709d-b59c-aae02d21b53e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestExpense_019f945c-39d0-7602-9469-0b40f06d569a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-39d0-709d-b59c-aae02d21b53e" xlink:to="loc_us-gaap_NoninterestExpense_019f945c-39d0-7602-9469-0b40f06d569a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesNetOfInterestExpense_019f945c-39d0-7aa8-b6fe-3a5d110e0279" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenuesNetOfInterestExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-39d0-709d-b59c-aae02d21b53e" xlink:to="loc_us-gaap_RevenuesNetOfInterestExpense_019f945c-39d0-7aa8-b6fe-3a5d110e0279" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited" xlink:type="simple" xlink:href="jef-20260831.xsd#ConsolidatedStatementsofComprehensiveIncomeUnaudited"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/ConsolidatedStatementsofComprehensiveIncomeUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019f945c-39d0-7b22-bd89-92fe9de4555c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019f945c-39d0-7075-bdae-6a8dcb0b1dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019f945c-39d0-7b22-bd89-92fe9de4555c" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019f945c-39d0-7075-bdae-6a8dcb0b1dcb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_019f945c-39d0-7b9d-87db-9d8145bfca57" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019f945c-39d0-7b22-bd89-92fe9de4555c" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest_019f945c-39d0-7b9d-87db-9d8145bfca57" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f945c-39d0-7cc8-8825-929ad8bb06be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_019f945c-39d0-7b22-bd89-92fe9de4555c" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_019f945c-39d0-7cc8-8825-929ad8bb06be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019f945c-39d0-7b8f-8ca5-00d9fc7b23a8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f945c-39d0-70c4-b646-ebe6456d3d6b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019f945c-39d0-7b8f-8ca5-00d9fc7b23a8" xlink:to="loc_us-gaap_ProfitLoss_019f945c-39d0-70c4-b646-ebe6456d3d6b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-7c14-bec6-2044191449c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_019f945c-39d0-7b8f-8ca5-00d9fc7b23a8" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-7c14-bec6-2044191449c7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-774f-b5d0-5d213bc4c975" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019f945c-39d0-7fc3-afb3-4bdd41c14c65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-774f-b5d0-5d213bc4c975" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_019f945c-39d0-7fc3-afb3-4bdd41c14c65" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciMarketRiskBenefitInstrumentSpecificCreditRiskGainLossAfterAdjustmentsAndTax_019f945c-39d0-71b9-9f80-8ffa13793fd6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OciMarketRiskBenefitInstrumentSpecificCreditRiskGainLossAfterAdjustmentsAndTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-774f-b5d0-5d213bc4c975" xlink:to="loc_us-gaap_OciMarketRiskBenefitInstrumentSpecificCreditRiskGainLossAfterAdjustmentsAndTax_019f945c-39d0-71b9-9f80-8ffa13793fd6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_019f945c-39d0-7cad-8787-91e0272f72b2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-774f-b5d0-5d213bc4c975" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_019f945c-39d0-7cad-8787-91e0272f72b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019f945c-39d0-7c9d-9f9e-8d0fa95738f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-39d0-774f-b5d0-5d213bc4c975" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax_019f945c-39d0-7c9d-9f9e-8d0fa95738f4" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/ConsolidatedStatementsofCashFlowsUnaudited" xlink:type="simple" xlink:href="jef-20260831.xsd#ConsolidatedStatementsofCashFlowsUnaudited"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/ConsolidatedStatementsofCashFlowsUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019f945c-39d0-702d-a6b9-5a6c1f159c8e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_ProfitLoss_019f945c-39d0-702d-a6b9-5a6c1f159c8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DepreciationAndOtherAmortization_019f945c-39d0-703c-899e-c302e1abd53e" xlink:href="jef-20260831.xsd#jef_DepreciationAndOtherAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_jef_DepreciationAndOtherAmortization_019f945c-39d0-703c-899e-c302e1abd53e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019f945c-39d0-70a2-9707-cbf8f666cbce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_AssetImpairmentCharges_019f945c-39d0-70a2-9707-cbf8f666cbce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_019f945c-39d0-731b-8a3d-5c1355d31525" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensation"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_ShareBasedCompensation_019f945c-39d0-731b-8a3d-5c1355d31525" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019f945c-39d0-7a03-82db-17709b6f1e69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_019f945c-39d0-7a03-82db-17709b6f1e69" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_IncomeOnLoansToAndInvestmentsInRelatedParties_019f945c-39d0-77c0-8fab-786adc1fd6ad" xlink:href="jef-20260831.xsd#jef_IncomeOnLoansToAndInvestmentsInRelatedParties"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_jef_IncomeOnLoansToAndInvestmentsInRelatedParties_019f945c-39d0-77c0-8fab-786adc1fd6ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DistributionsReceivedOnInvestmentsInRelatedParties_019f945c-39d0-7524-b892-d24dccaefe8e" xlink:href="jef-20260831.xsd#jef_DistributionsReceivedOnInvestmentsInRelatedParties"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_jef_DistributionsReceivedOnInvestmentsInRelatedParties_019f945c-39d0-7524-b892-d24dccaefe8e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_GainLossOnAssetHeldForSale_019f945c-39d0-740a-8ba5-2f037dce9ed3" xlink:href="jef-20260831.xsd#jef_GainLossOnAssetHeldForSale"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_jef_GainLossOnAssetHeldForSale_019f945c-39d0-740a-8ba5-2f037dce9ed3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_019f945c-39d0-7e13-9276-83aee660778a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_019f945c-39d0-7e13-9276-83aee660778a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInBrokerageReceivables_019f945c-39d0-76da-b17e-f33e9bd268bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInBrokerageReceivables"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInBrokerageReceivables_019f945c-39d0-76da-b17e-f33e9bd268bb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_IncreaseDecreaseInCustomersReceivable_019f945c-39d0-7b6e-9352-4e52713c0b68" xlink:href="jef-20260831.xsd#jef_IncreaseDecreaseInCustomersReceivable"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_jef_IncreaseDecreaseInCustomersReceivable_019f945c-39d0-7b6e-9352-4e52713c0b68" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherReceivables_019f945c-39d0-7737-99fc-52c10aac5795" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherReceivables"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherReceivables_019f945c-39d0-7737-99fc-52c10aac5795" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInSecuritiesBorrowed_019f945c-39d0-78bc-9792-db6f1a06f17a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInSecuritiesBorrowed"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInSecuritiesBorrowed_019f945c-39d0-78bc-9792-db6f1a06f17a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities_019f945c-39d0-70b5-9516-3cfe05fae077" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities"/>
    <link:calculationArc order="14" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities_019f945c-39d0-70b5-9516-3cfe05fae077" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivablesUnderRepurchaseAgreements_019f945c-39d0-7a6d-a9a8-00cce3b2543d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInReceivablesUnderRepurchaseAgreements"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivablesUnderRepurchaseAgreements_019f945c-39d0-7a6d-a9a8-00cce3b2543d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_019f945c-39d0-71ce-a270-38c57d06f916" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <link:calculationArc order="16" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_019f945c-39d0-71ce-a270-38c57d06f916" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_019f945c-39d0-7f4f-9e36-b5ebab30f428" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPayablesToBrokerDealers"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_019f945c-39d0-7f4f-9e36-b5ebab30f428" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPayablesToCustomers_019f945c-39d0-7961-8468-d88994865913" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPayablesToCustomers"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInPayablesToCustomers_019f945c-39d0-7961-8468-d88994865913" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInSecuritiesLoanedTransactions_019f945c-39d0-7ea7-8257-d7a27b8a326e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInSecuritiesLoanedTransactions"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInSecuritiesLoanedTransactions_019f945c-39d0-7ea7-8257-d7a27b8a326e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_019f945c-39d0-702d-94c0-6211af95aac8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased"/>
    <link:calculationArc order="20" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_019f945c-39d0-702d-94c0-6211af95aac8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPayablesUnderRepurchaseAgreements_019f945c-39d0-7cd5-a72d-67e48ef107a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInPayablesUnderRepurchaseAgreements"/>
    <link:calculationArc order="21" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInPayablesUnderRepurchaseAgreements_019f945c-39d0-7cd5-a72d-67e48ef107a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_01a0164e-e21d-7c37-a3d8-3b052b9b9058" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability"/>
    <link:calculationArc order="22" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_01a0164e-e21d-7c37-a3d8-3b052b9b9058" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_01a0f33a-f808-775f-88dc-89715228db1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:calculationArc order="23" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7bfd-9570-eb7673ce0659" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_01a0f33a-f808-775f-88dc-89715228db1a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019f945c-39d0-7dd4-ab0a-9d0bb69ccf5e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019f945c-39d0-7162-8343-14568126a83e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019f945c-39d0-7dd4-ab0a-9d0bb69ccf5e" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_019f945c-39d0-7162-8343-14568126a83e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7161-a6d8-f6fbba87a734" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019f945c-39d0-7dd4-ab0a-9d0bb69ccf5e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7161-a6d8-f6fbba87a734" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-7c50-80fb-b66ad88a5007" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019f945c-39d0-7dd4-ab0a-9d0bb69ccf5e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-7c50-80fb-b66ad88a5007" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7a51-82e7-4f58e48fb496" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_019f945c-39d0-7dd4-ab0a-9d0bb69ccf5e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_019f945c-39d0-7a51-82e7-4f58e48fb496" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToFundLongtermLoansToRelatedParties_019f945c-39d0-7513-8670-870984b630f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToFundLongtermLoansToRelatedParties"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_us-gaap_PaymentsToFundLongtermLoansToRelatedParties_019f945c-39d0-7513-8670-870984b630f3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties_019f945c-39d0-7806-b6e0-28d50e1310cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_us-gaap_ProceedsFromCollectionOfLongtermLoansToRelatedParties_019f945c-39d0-7806-b6e0-28d50e1310cc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_PaymentsForOriginationAndPurchaseOfLoansNotesAndOtherReceivables_019f945c-39d0-7d82-8a0e-ac43a6901ded" xlink:href="jef-20260831.xsd#jef_PaymentsForOriginationAndPurchaseOfLoansNotesAndOtherReceivables"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_jef_PaymentsForOriginationAndPurchaseOfLoansNotesAndOtherReceivables_019f945c-39d0-7d82-8a0e-ac43a6901ded" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromCollectionOfLoansReceivable_01a0164f-ed4b-700a-88ac-faf7b715f3e5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromCollectionOfLoansReceivable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_us-gaap_ProceedsFromCollectionOfLoansReceivable_01a0164f-ed4b-700a-88ac-faf7b715f3e5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a043fa-efbb-7b0d-a279-61dd5343de54" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_01a043fa-efbb-7b0d-a279-61dd5343de54" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_01a043fa-efbb-7edf-80a3-6b1ce6479cb5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_019f945c-39d0-7463-8133-934cc82596c8" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_01a043fa-efbb-7edf-80a3-6b1ce6479cb5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromShortTermDebt_019f945c-39d0-7fee-a4f7-9fda060a574a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromShortTermDebt"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_ProceedsFromShortTermDebt_019f945c-39d0-7fee-a4f7-9fda060a574a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfShortTermDebt_019f945c-39d0-79ab-9777-27e2a469fc2e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfShortTermDebt"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_RepaymentsOfShortTermDebt_019f945c-39d0-79ab-9777-27e2a469fc2e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_019f945c-39d0-74f7-a405-d74a028cedf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_019f945c-39d0-74f7-a405-d74a028cedf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_019f945c-39d0-7d50-8351-d23ff42623be" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_019f945c-39d0-7d50-8351-d23ff42623be" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019f945c-39d0-78ba-a44c-8976a88e1e92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_019f945c-39d0-78ba-a44c-8976a88e1e92" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019f945c-39d0-7a2a-a9c3-607870ed056a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019f945c-39d0-7a2a-a9c3-607870ed056a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_NetProceedsFromPaymentsOnOtherSecuredFinancings_019f945c-39d0-78df-9be2-e412c5d8ad9d" xlink:href="jef-20260831.xsd#jef_NetProceedsFromPaymentsOnOtherSecuredFinancings"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_jef_NetProceedsFromPaymentsOnOtherSecuredFinancings_019f945c-39d0-78df-9be2-e412c5d8ad9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfBankOverdrafts_019f945c-39d0-73ac-a911-66c69bd1c63d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromRepaymentsOfBankOverdrafts"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfBankOverdrafts_019f945c-39d0-73ac-a911-66c69bd1c63d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMinorityShareholders_019f945c-39d0-71d6-834d-bfd7885c6adc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromMinorityShareholders"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_ProceedsFromMinorityShareholders_019f945c-39d0-71d6-834d-bfd7885c6adc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_019f945c-39d0-7123-94dd-dcb4316f23a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PaymentsToMinorityShareholders"/>
    <link:calculationArc order="10" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_019f945c-39d0-7123-94dd-dcb4316f23a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019f945c-39d0-7ef0-bb2a-db2567a282d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_019f945c-39d0-766b-bcd2-f33a231657ac" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_019f945c-39d0-7ef0-bb2a-db2567a282d6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/ConsolidatedStatementsofCashFlowsUnauditedParenthetical" xlink:type="simple" xlink:href="jef-20260831.xsd#ConsolidatedStatementsofCashFlowsUnauditedParenthetical"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/ConsolidatedStatementsofCashFlowsUnauditedParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019f945c-39d0-7419-9cad-25d324385b84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f945c-39d0-7b36-90c2-1d7f7ab3d28a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019f945c-39d0-7419-9cad-25d324385b84" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019f945c-39d0-7b36-90c2-1d7f7ab3d28a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_CashAndSecuritiesSegregatedAndOnDepositForRegulatoryPurposesWithClearingAndDepositoryOrganizations_019f945c-39d0-7d8b-b5d6-bb2f691a52e9" xlink:href="jef-20260831.xsd#jef_CashAndSecuritiesSegregatedAndOnDepositForRegulatoryPurposesWithClearingAndDepositoryOrganizations"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_019f945c-39d0-7419-9cad-25d324385b84" xlink:to="loc_jef_CashAndSecuritiesSegregatedAndOnDepositForRegulatoryPurposesWithClearingAndDepositoryOrganizations_019f945c-39d0-7d8b-b5d6-bb2f691a52e9" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/AssetsandLiabilitiesHeldforSaleDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#AssetsandLiabilitiesHeldforSaleDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/AssetsandLiabilitiesHeldforSaleDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-7413-9110-ee8b7b0334d6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumeShortTermBorrowings_019f945c-39d0-7f5c-bca7-c5580584524f" xlink:href="jef-20260831.xsd#jef_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumeShortTermBorrowings"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-7413-9110-ee8b7b0334d6" xlink:to="loc_jef_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumeShortTermBorrowings_019f945c-39d0-7f5c-bca7-c5580584524f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationAssetsLeaseLiabilities_019f945c-39d0-7bdc-a3bf-745f8a76a622" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationAssetsLeaseLiabilities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-7413-9110-ee8b7b0334d6" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationAssetsLeaseLiabilities_019f945c-39d0-7bdc-a3bf-745f8a76a622" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationAssetsAccruedExpensesAndOtherLiabilities_019f945c-39d0-726f-904c-fc11a2627d72" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationAssetsAccruedExpensesAndOtherLiabilities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-7413-9110-ee8b7b0334d6" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationAssetsAccruedExpensesAndOtherLiabilities_019f945c-39d0-726f-904c-fc11a2627d72" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationLongTermDebt_019f945c-39d0-7075-9a8e-587db6fd0a31" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationLongTermDebt"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-7413-9110-ee8b7b0334d6" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationLongTermDebt_019f945c-39d0-7075-9a8e-587db6fd0a31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_019f945c-39d0-7c0e-8b40-ae5047b0264d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents_019f945c-39d0-7c0e-8b40-ae5047b0264d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationOtherReceivableNet_019f945c-39d0-7bfa-9ac8-a6a5a289b6ad" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationOtherReceivableNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationOtherReceivableNet_019f945c-39d0-7bfa-9ac8-a6a5a289b6ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationPremisesAndEquipmentNet_019f945c-39d0-7350-8b4e-0b69cfab55dd" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationPremisesAndEquipmentNet"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationPremisesAndEquipmentNet_019f945c-39d0-7350-8b4e-0b69cfab55dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_019f945c-39d0-7f70-a386-9d1d8146958e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_019f945c-39d0-7f70-a386-9d1d8146958e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_019f945c-39d0-7c76-822b-b06b1c0c6ae8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets_019f945c-39d0-7c76-822b-b06b1c0c6ae8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DisposalGroupIncludingDiscontinuedOperationIncomeLossOnLoansToAndInvestmentsInRelatedParties_019f945c-39d0-7223-b687-e3cf111bd1d7" xlink:href="jef-20260831.xsd#jef_DisposalGroupIncludingDiscontinuedOperationIncomeLossOnLoansToAndInvestmentsInRelatedParties"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_019f945c-39d0-71b6-9266-e54aa1bd9090" xlink:to="loc_jef_DisposalGroupIncludingDiscontinuedOperationIncomeLossOnLoansToAndInvestmentsInRelatedParties_019f945c-39d0-7223-b687-e3cf111bd1d7" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/DerivativeFinancialInstrumentsFairValueandRelatedNumberofDerivativeContractsCategorizedbyTypeofDerivativeContractDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#DerivativeFinancialInstrumentsFairValueandRelatedNumberofDerivativeContractsCategorizedbyTypeofDerivativeContractDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/DerivativeFinancialInstrumentsFairValueandRelatedNumberofDerivativeContractsCategorizedbyTypeofDerivativeContractDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019f945c-3a86-7759-89b5-b1a1f9235921" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssets"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019f945c-3a86-7291-bbff-7caec98bb174" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_019f945c-3a86-7759-89b5-b1a1f9235921" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_019f945c-3a86-7291-bbff-7caec98bb174" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_019f945c-3a86-7bb6-870e-ce25599c207a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeAssets_019f945c-3a86-7759-89b5-b1a1f9235921" xlink:to="loc_us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset_019f945c-3a86-7bb6-870e-ce25599c207a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019f945c-3a86-785a-80f4-109946376841" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019f945c-3a86-72a2-a9ba-d7d28768458c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_019f945c-3a86-785a-80f4-109946376841" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_019f945c-3a86-72a2-a9ba-d7d28768458c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset_019f945c-3a86-725f-984c-2ad4d71beef5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_DerivativeLiabilities_019f945c-3a86-785a-80f4-109946376841" xlink:to="loc_us-gaap_DerivativeLiabilityCollateralRightToReclaimCashOffset_019f945c-3a86-725f-984c-2ad4d71beef5" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/DerivativeFinancialInstrumentsScheduleofAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#DerivativeFinancialInstrumentsScheduleofAccumulatedOtherComprehensiveIncomeLossDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/DerivativeFinancialInstrumentsScheduleofAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease_019f945c-3a86-71bc-8e46-0c3f5054fdee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-3a86-7b81-b891-c217ffeb132d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestPeriodIncreaseDecrease_019f945c-3a86-71bc-8e46-0c3f5054fdee" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f945c-3a86-7b81-b891-c217ffeb132d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/DerivativeFinancialInstrumentsRemainingContractMaturityofFairValueofOTCDerivativeAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#DerivativeFinancialInstrumentsRemainingContractMaturityofFairValueofOTCDerivativeAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/DerivativeFinancialInstrumentsRemainingContractMaturityofFairValueofOTCDerivativeAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-7237-a711-c0aef22a07cb" xlink:href="jef-20260831.xsd#jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfZeroToTwelveMonths_019f945c-3a86-759c-bf89-eb6fc86a6536" xlink:href="jef-20260831.xsd#jef_OtcDerivativeAssetsHavingMaturityPeriodOfZeroToTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-7237-a711-c0aef22a07cb" xlink:to="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfZeroToTwelveMonths_019f945c-3a86-759c-bf89-eb6fc86a6536" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfOneToFiveYears_019f945c-3a86-71f3-bf23-d400553ced84" xlink:href="jef-20260831.xsd#jef_OtcDerivativeAssetsHavingMaturityPeriodOfOneToFiveYears"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-7237-a711-c0aef22a07cb" xlink:to="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfOneToFiveYears_019f945c-3a86-71f3-bf23-d400553ced84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfGreaterThanFiveYears_019f945c-3a86-7bb0-8bb4-69f2bab0536a" xlink:href="jef-20260831.xsd#jef_OtcDerivativeAssetsHavingMaturityPeriodOfGreaterThanFiveYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-7237-a711-c0aef22a07cb" xlink:to="loc_jef_OtcDerivativeAssetsHavingMaturityPeriodOfGreaterThanFiveYears_019f945c-3a86-7bb0-8bb4-69f2bab0536a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeAssetsCrossMaturityNetting_019f945c-3a86-763c-8abd-aa9d438e1b86" xlink:href="jef-20260831.xsd#jef_OtcDerivativeAssetsCrossMaturityNetting"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-7237-a711-c0aef22a07cb" xlink:to="loc_jef_OtcDerivativeAssetsCrossMaturityNetting_019f945c-3a86-763c-8abd-aa9d438e1b86" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeLiabilitiesIncludedInFinancialInstrumentsSoldNotYetPurchased_019f945c-3a86-7bf4-bbbd-c6601a5ccef1" xlink:href="jef-20260831.xsd#jef_OtcDerivativeLiabilitiesIncludedInFinancialInstrumentsSoldNotYetPurchased"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7c59-b116-72eed2186f7e" xlink:href="jef-20260831.xsd#jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OtcDerivativeLiabilitiesIncludedInFinancialInstrumentsSoldNotYetPurchased_019f945c-3a86-7bf4-bbbd-c6601a5ccef1" xlink:to="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7c59-b116-72eed2186f7e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DerivativeLiabilitiesCrossProductCounterpartyNetting_019f945c-3a86-729e-9a37-4b867e84f3ec" xlink:href="jef-20260831.xsd#jef_DerivativeLiabilitiesCrossProductCounterpartyNetting"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OtcDerivativeLiabilitiesIncludedInFinancialInstrumentsSoldNotYetPurchased_019f945c-3a86-7bf4-bbbd-c6601a5ccef1" xlink:to="loc_jef_DerivativeLiabilitiesCrossProductCounterpartyNetting_019f945c-3a86-729e-9a37-4b867e84f3ec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-72b2-a94a-8496eb52af3d" xlink:href="jef-20260831.xsd#jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-790d-901f-1c5a1420216b" xlink:href="jef-20260831.xsd#jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-72b2-a94a-8496eb52af3d" xlink:to="loc_jef_ConsolidatedOtcDerivativeAssetsNetOfCrossmaturityNetting_019f945c-3a86-790d-901f-1c5a1420216b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DerivativeAssetsCrossProductCounterpartyNetting_019f945c-3a86-7dcb-a40a-c5c78e7c6337" xlink:href="jef-20260831.xsd#jef_DerivativeAssetsCrossProductCounterpartyNetting"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-72b2-a94a-8496eb52af3d" xlink:to="loc_jef_DerivativeAssetsCrossProductCounterpartyNetting_019f945c-3a86-7dcb-a40a-c5c78e7c6337" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7d66-b2eb-80dce2b860c9" xlink:href="jef-20260831.xsd#jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfZeroToTwelveMonths_019f945c-3a86-7ad7-bf48-1ed3b77645ce" xlink:href="jef-20260831.xsd#jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfZeroToTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7d66-b2eb-80dce2b860c9" xlink:to="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfZeroToTwelveMonths_019f945c-3a86-7ad7-bf48-1ed3b77645ce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfOneToFiveYears_019f945c-3a86-7d36-9fc5-81a3f06c8474" xlink:href="jef-20260831.xsd#jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfOneToFiveYears"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7d66-b2eb-80dce2b860c9" xlink:to="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfOneToFiveYears_019f945c-3a86-7d36-9fc5-81a3f06c8474" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfGreaterThanFiveYears_019f945c-3a86-7e1a-b259-3f7fd14bdf90" xlink:href="jef-20260831.xsd#jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfGreaterThanFiveYears"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7d66-b2eb-80dce2b860c9" xlink:to="loc_jef_OtcDerivativeLiabilitiesHavingMaturityPeriodOfGreaterThanFiveYears_019f945c-3a86-7e1a-b259-3f7fd14bdf90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_OtcDerivativeLiabilitiesCrossMaturityNetting_019f945c-3a86-7524-a0f7-89f1e687309a" xlink:href="jef-20260831.xsd#jef_OtcDerivativeLiabilitiesCrossMaturityNetting"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_ConsolidatedOtcDerivativeLiabilitiesNetOfCrossMaturityNetting_019f945c-3a86-7d66-b2eb-80dce2b860c9" xlink:to="loc_jef_OtcDerivativeLiabilitiesCrossMaturityNetting_019f945c-3a86-7524-a0f7-89f1e687309a" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/DerivativeFinancialInstrumentsFairValueofOTCDerivativesAssetsDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#DerivativeFinancialInstrumentsFairValueofOTCDerivativesAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/DerivativeFinancialInstrumentsFairValueofOTCDerivativesAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-7140-867b-f90e87a5e6b3" xlink:href="jef-20260831.xsd#jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityAOrHigher_019f945c-3a86-7b80-93b1-3bf3906df42e" xlink:href="jef-20260831.xsd#jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityAOrHigher"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-7140-867b-f90e87a5e6b3" xlink:to="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityAOrHigher_019f945c-3a86-7b80-93b1-3bf3906df42e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbbToBbb_019f945c-3a86-7b36-9937-ccaa8023e9a1" xlink:href="jef-20260831.xsd#jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbbToBbb"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-7140-867b-f90e87a5e6b3" xlink:to="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbbToBbb_019f945c-3a86-7b36-9937-ccaa8023e9a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbOrLower_019f945c-3a86-775a-93be-6a5a9ec6a08f" xlink:href="jef-20260831.xsd#jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbOrLower"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-7140-867b-f90e87a5e6b3" xlink:to="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityBbOrLower_019f945c-3a86-775a-93be-6a5a9ec6a08f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityUnrated_019f945c-3a86-793d-a48d-3132be1cf9b8" xlink:href="jef-20260831.xsd#jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityUnrated"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_jef_OTCDerivativeAssetsIncludedInFinancialInstrumentsOwned_019f945c-3a86-7140-867b-f90e87a5e6b3" xlink:to="loc_jef_FairValueOfOverCounterDerivativesAssetsCounterpartyCreditQualityUnrated_019f945c-3a86-793d-a48d-3132be1cf9b8" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/CollateralizedTransactionsCollateralPledgedDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#CollateralizedTransactionsCollateralPledgedDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/CollateralizedTransactionsCollateralPledgedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-7182-971e-bbc6418abf2f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred_019f945c-3a86-7050-a8f2-a7de53db4260" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-7182-971e-bbc6418abf2f" xlink:to="loc_us-gaap_SecuritiesLoanedIncludingNotSubjectToMasterNettingArrangementAndAssetsOtherThanSecuritiesTransferred_019f945c-3a86-7050-a8f2-a7de53db4260" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-76a0-86ee-4154110077aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-7182-971e-bbc6418abf2f" xlink:to="loc_us-gaap_FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-76a0-86ee-4154110077aa" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-72e1-8958-1a0cfc7d2231" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement_019f945c-3a86-7182-971e-bbc6418abf2f" xlink:to="loc_us-gaap_DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-72e1-8958-1a0cfc7d2231" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/CollateralizedTransactionsRepurchaseAgreementsandSecuritiesBorrowingandLendingArrangementsDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#CollateralizedTransactionsRepurchaseAgreementsandSecuritiesBorrowingandLendingArrangementsDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/CollateralizedTransactionsRepurchaseAgreementsandSecuritiesBorrowingandLendingArrangementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral_019f945c-3a86-73f0-8fa3-17d2e3ba7cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowed_019f945c-3a86-7fa9-9d67-b475a2b5fe55" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowed"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral_019f945c-3a86-73f0-8fa3-17d2e3ba7cd1" xlink:to="loc_us-gaap_SecuritiesBorrowed_019f945c-3a86-7fa9-9d67-b475a2b5fe55" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowedCollateralObligationToReturnCash_019f945c-3a86-7cce-b66b-53d48ce01a31" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowedCollateralObligationToReturnCash"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral_019f945c-3a86-73f0-8fa3-17d2e3ba7cd1" xlink:to="loc_us-gaap_SecuritiesBorrowedCollateralObligationToReturnCash_019f945c-3a86-7cce-b66b-53d48ce01a31" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowedCollateralObligationToReturnSecurities_019f945c-3a86-78c6-bfb4-891444f1ef8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowedCollateralObligationToReturnSecurities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesBorrowedAmountOffsetAgainstCollateral_019f945c-3a86-73f0-8fa3-17d2e3ba7cd1" xlink:to="loc_us-gaap_SecuritiesBorrowedCollateralObligationToReturnSecurities_019f945c-3a86-78c6-bfb4-891444f1ef8b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecurityPurchasedUnderAgreementToResellAfterOffsetAndDeductionSubjectToMasterNettingArrangement_019f945c-3a86-717e-8276-44174db2ac84" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecurityPurchasedUnderAgreementToResellAfterOffsetAndDeductionSubjectToMasterNettingArrangement"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-3a86-76eb-b962-461f5d08dbf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResell"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecurityPurchasedUnderAgreementToResellAfterOffsetAndDeductionSubjectToMasterNettingArrangement_019f945c-3a86-717e-8276-44174db2ac84" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-3a86-76eb-b962-461f5d08dbf4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction_019f945c-3a86-7dfc-aa57-bf53d2ca5719" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecurityPurchasedUnderAgreementToResellAfterOffsetAndDeductionSubjectToMasterNettingArrangement_019f945c-3a86-717e-8276-44174db2ac84" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellNotOffsetPolicyElectionDeduction_019f945c-3a86-7dfc-aa57-bf53d2ca5719" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral_019f945c-3a86-7805-b8de-ce03bf32f8f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecurityPurchasedUnderAgreementToResellAfterOffsetAndDeductionSubjectToMasterNettingArrangement_019f945c-3a86-717e-8276-44174db2ac84" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral_019f945c-3a86-7805-b8de-ce03bf32f8f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_019f945c-3a86-7cb4-9948-31b000caecf3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_019f945c-3a86-703d-93ca-6038f26ebdbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_019f945c-3a86-7cb4-9948-31b000caecf3" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGross_019f945c-3a86-703d-93ca-6038f26ebdbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset_019f945c-3a86-793e-b32d-21199f6e1de4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_019f945c-3a86-7cb4-9948-31b000caecf3" xlink:to="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseAsset_019f945c-3a86-793e-b32d-21199f6e1de4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoaned_019f945c-3a86-71b4-ba5c-79f0d23b943d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoaned"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedGross_019f945c-3a86-7862-8f10-9523bd828a06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesLoaned_019f945c-3a86-71b4-ba5c-79f0d23b943d" xlink:to="loc_us-gaap_SecuritiesLoanedGross_019f945c-3a86-7862-8f10-9523bd828a06" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedAsset_019f945c-3a86-788f-abbb-307953a95e16" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedAsset"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesLoaned_019f945c-3a86-71b4-ba5c-79f0d23b943d" xlink:to="loc_us-gaap_SecuritiesLoanedAsset_019f945c-3a86-788f-abbb-307953a95e16" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowed_019f945c-3a86-718e-8015-5a06848e0164" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowed"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowedGross_019f945c-3a86-7901-b854-feaec0348d9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowedGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesBorrowed_019f945c-3a86-718e-8015-5a06848e0164" xlink:to="loc_us-gaap_SecuritiesBorrowedGross_019f945c-3a86-7901-b854-feaec0348d9f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesBorrowedLiability_019f945c-3a86-74b0-989c-9317ac93eb7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesBorrowedLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesBorrowed_019f945c-3a86-718e-8015-5a06848e0164" xlink:to="loc_us-gaap_SecuritiesBorrowedLiability_019f945c-3a86-74b0-989c-9317ac93eb7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-7eae-9a7b-100e753205ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoaned_019f945c-3a86-7060-80ba-d41740c8ffce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoaned"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-7eae-9a7b-100e753205ee" xlink:to="loc_us-gaap_SecuritiesLoaned_019f945c-3a86-7060-80ba-d41740c8ffce" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedCollateralRightToReclaimCash_019f945c-3a86-76e5-99be-f60be2ff179f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedCollateralRightToReclaimCash"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-7eae-9a7b-100e753205ee" xlink:to="loc_us-gaap_SecuritiesLoanedCollateralRightToReclaimCash_019f945c-3a86-76e5-99be-f60be2ff179f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesLoanedCollateralRightToReclaimSecurities_019f945c-3a86-7ebe-8f2b-f1d84d91014c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesLoanedCollateralRightToReclaimSecurities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesLoanedAmountOffsetAgainstCollateral_019f945c-3a86-7eae-9a7b-100e753205ee" xlink:to="loc_us-gaap_SecuritiesLoanedCollateralRightToReclaimSecurities_019f945c-3a86-7ebe-8f2b-f1d84d91014c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-3a86-766c-83cf-e254a80c7a69" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResell"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross_019f945c-3a86-7cee-9ee0-6cc13ee148a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-3a86-766c-83cf-e254a80c7a69" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellGross_019f945c-3a86-7cee-9ee0-6cc13ee148a6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability_019f945c-3a86-750b-98d6-85536818342c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResell_019f945c-3a86-766c-83cf-e254a80c7a69" xlink:to="loc_us-gaap_SecuritiesPurchasedUnderAgreementsToResellLiability_019f945c-3a86-750b-98d6-85536818342c" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/GoodwillandIntangibleAssetsSummaryofIntangibleAssetsDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#GoodwillandIntangibleAssetsSummaryofIntangibleAssetsDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/GoodwillandIntangibleAssetsSummaryofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_019f945c-3b52-7aeb-a0e6-b62cb33c98e6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019f945c-3b52-7707-b403-8857edf997a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_019f945c-3b52-7aeb-a0e6-b62cb33c98e6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019f945c-3b52-7707-b403-8857edf997a9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_IndefiniteLivedIntangibleAssetsGross_019f945c-3b52-7868-a8ea-3af1e8440e50" xlink:href="jef-20260831.xsd#jef_IndefiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_019f945c-3b52-7aeb-a0e6-b62cb33c98e6" xlink:to="loc_jef_IndefiniteLivedIntangibleAssetsGross_019f945c-3b52-7868-a8ea-3af1e8440e50" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f945c-3b52-7f59-b7c0-e279177934a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_IndefiniteLivedIntangibleAssetNetCostAfterImpairment_019f945c-3b52-7c24-993d-349523d4880b" xlink:href="jef-20260831.xsd#jef_IndefiniteLivedIntangibleAssetNetCostAfterImpairment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f945c-3b52-7f59-b7c0-e279177934a9" xlink:to="loc_jef_IndefiniteLivedIntangibleAssetNetCostAfterImpairment_019f945c-3b52-7c24-993d-349523d4880b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f945c-3b52-7940-9479-8fd543b756f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019f945c-3b52-7f59-b7c0-e279177934a9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019f945c-3b52-7940-9479-8fd543b756f2" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/RevenuesfromContractswithCustomersComponentsofRevenueDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#RevenuesfromContractswithCustomersComponentsofRevenueDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/RevenuesfromContractswithCustomersComponentsofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019f945c-3b52-704b-8499-418d0cc348ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer_019f945c-3b52-7fd9-bc70-23fe5d41a207" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019f945c-3b52-704b-8499-418d0cc348ef" xlink:to="loc_us-gaap_RevenueNotFromContractWithCustomer_019f945c-3b52-7fd9-bc70-23fe5d41a207" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f945c-3b52-7066-95f3-f1b3fee294b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019f945c-3b52-704b-8499-418d0cc348ef" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019f945c-3b52-7066-95f3-f1b3fee294b1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/BorrowingsMaturitiesofLongTermDebtDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#BorrowingsMaturitiesofLongTermDebtDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/BorrowingsMaturitiesofLongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebt"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019f945c-3b53-7fae-98da-d88877e988e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_019f945c-3b53-7fae-98da-d88877e988e8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019f945c-3b53-79f5-aae7-5ee0de4bf26b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_019f945c-3b53-79f5-aae7-5ee0de4bf26b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_LongTermDebtMaturityYearFiveAndThereafter_019f945c-3b53-7505-a6ad-93892bf7ff8a" xlink:href="jef-20260831.xsd#jef_LongTermDebtMaturityYearFiveAndThereafter"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_jef_LongTermDebtMaturityYearFiveAndThereafter_019f945c-3b53-7505-a6ad-93892bf7ff8a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019f945c-3b53-7432-a434-06bd4606e561" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_019f945c-3b53-7432-a434-06bd4606e561" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019f945c-3b53-7491-ac4b-eb58b10a8a99" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_019f945c-3b53-7491-ac4b-eb58b10a8a99" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019f945c-3b53-7264-80eb-53ce5cf04443" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebt_019f945c-3b53-7dfa-bb29-b4532da88c13" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_019f945c-3b53-7264-80eb-53ce5cf04443" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/TotalEquityEarningsperShareDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#TotalEquityEarningsperShareDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/TotalEquityEarningsperShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-7a8f-8bc7-77aed0862207" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_DistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-741d-9e3f-d2186390889f" xlink:href="jef-20260831.xsd#jef_DistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-7a8f-8bc7-77aed0862207" xlink:to="loc_jef_DistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-741d-9e3f-d2186390889f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-7638-bff3-650f4aa1111f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UndistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-7a8f-8bc7-77aed0862207" xlink:to="loc_us-gaap_UndistributedEarningsLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-7638-bff3-650f4aa1111f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/TotalEquityEarningsPerShareComputationDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#TotalEquityEarningsPerShareComputationDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/TotalEquityEarningsPerShareComputationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-7b64-b2c0-b690d6e4094f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_WeightedAverageNumberOfSharesRestrictedStockUnits_019f945c-3b53-7048-bda7-b3d277facef7" xlink:href="jef-20260831.xsd#jef_WeightedAverageNumberOfSharesRestrictedStockUnits"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-7b64-b2c0-b690d6e4094f" xlink:to="loc_jef_WeightedAverageNumberOfSharesRestrictedStockUnits_019f945c-3b53-7048-bda7-b3d277facef7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_WeightedAverageCommonSharesOutstanding_019f945c-3b53-702f-a28a-f7553ee5891d" xlink:href="jef-20260831.xsd#jef_WeightedAverageCommonSharesOutstanding"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-7b64-b2c0-b690d6e4094f" xlink:to="loc_jef_WeightedAverageCommonSharesOutstanding_019f945c-3b53-702f-a28a-f7553ee5891d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesRestrictedStock_019f945c-3b53-76be-906f-8140393ec9c3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesRestrictedStock"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-7b64-b2c0-b690d6e4094f" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesRestrictedStock_019f945c-3b53-76be-906f-8140393ec9c3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f945c-3b53-7cd7-9470-4ef9c86bb799" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-742f-8c13-e33c04e39b34" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f945c-3b53-7cd7-9470-4ef9c86bb799" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019f945c-3b53-742f-8c13-e33c04e39b34" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock_019f945c-3b53-774f-8d70-3c95e3d13391" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f945c-3b53-7cd7-9470-4ef9c86bb799" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock_019f945c-3b53-774f-8d70-3c95e3d13391" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019f945c-3b53-7cc1-bc2f-1687cadf0445" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019f945c-3b53-7cd7-9470-4ef9c86bb799" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019f945c-3b53-7cc1-bc2f-1687cadf0445" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-72ef-9a83-fb6aee133d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019f945c-3b53-7855-9b7b-e09335afb8b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-72ef-9a83-fb6aee133d5a" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019f945c-3b53-7855-9b7b-e09335afb8b6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_019f945c-3b53-7c4c-b150-362ad830808a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-72ef-9a83-fb6aee133d5a" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_019f945c-3b53-7c4c-b150-362ad830808a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_019f945c-3b53-758d-8182-83e385ce05e2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic_019f945c-3b53-72ef-9a83-fb6aee133d5a" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_019f945c-3b53-758d-8182-83e385ce05e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019f945c-3b53-7e70-9a7e-80880a57c8b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019f945c-3b53-7a60-a81f-c5174f134317" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019f945c-3b53-7e70-9a7e-80880a57c8b3" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_019f945c-3b53-7a60-a81f-c5174f134317" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_019f945c-3b53-73c5-953b-e61dd4c1d1dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019f945c-3b53-7e70-9a7e-80880a57c8b3" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity_019f945c-3b53-73c5-953b-e61dd4c1d1dc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_019f945c-3b53-795b-a7fa-c79d02d5a076" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted_019f945c-3b53-7e70-9a7e-80880a57c8b3" xlink:to="loc_us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic_019f945c-3b53-795b-a7fa-c79d02d5a076" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/CommitmentsContingenciesandGuaranteesCommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#CommitmentsContingenciesandGuaranteesCommitmentsandContingenciesDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/CommitmentsContingenciesandGuaranteesCommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligation"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear_019f945c-3b53-7858-9e9f-e6a1626c9f19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:to="loc_us-gaap_ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear_019f945c-3b53-7858-9e9f-e6a1626c9f19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInNextTwelveMonths_019f945c-3b53-7230-bc37-d86df1ac067c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligationDueInNextTwelveMonths"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:to="loc_us-gaap_ContractualObligationDueInNextTwelveMonths_019f945c-3b53-7230-bc37-d86df1ac067c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInSecondAndThirdYear_019f945c-3b53-75d9-91c8-1c787716d791" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligationDueInSecondAndThirdYear"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:to="loc_us-gaap_ContractualObligationDueInSecondAndThirdYear_019f945c-3b53-75d9-91c8-1c787716d791" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInFourthAndFifthYear_019f945c-3b53-7b69-a01d-05bfebdcd7d1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligationDueInFourthAndFifthYear"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:to="loc_us-gaap_ContractualObligationDueInFourthAndFifthYear_019f945c-3b53-7b69-a01d-05bfebdcd7d1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueAfterFifthYear_019f945c-3b53-7d82-9f3b-fc011252a5c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractualObligationDueAfterFifthYear"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_ContractualObligation_019f945c-3b53-7bec-bade-d4c6d13f16c6" xlink:to="loc_us-gaap_ContractualObligationDueAfterFifthYear_019f945c-3b53-7d82-9f3b-fc011252a5c1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/CommitmentsContingenciesandGuaranteesGuaranteesDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#CommitmentsContingenciesandGuaranteesGuaranteesDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/CommitmentsContingenciesandGuaranteesGuaranteesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposure_019f945c-3b53-71aa-86dc-0608dc42d5fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GuaranteeObligationsMaximumExposure"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_GuaranteesExpectedToBeDueRemainderOfFiscalYear_019f945c-3b53-74df-8356-533bfcdd24ee" xlink:href="jef-20260831.xsd#jef_GuaranteesExpectedToBeDueRemainderOfFiscalYear"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_019f945c-3b53-71aa-86dc-0608dc42d5fd" xlink:to="loc_jef_GuaranteesExpectedToBeDueRemainderOfFiscalYear_019f945c-3b53-74df-8356-533bfcdd24ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_GuaranteesExpectedToBeDueYearOne_019f945c-3b53-7648-b364-f2018dadce1c" xlink:href="jef-20260831.xsd#jef_GuaranteesExpectedToBeDueYearOne"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_019f945c-3b53-71aa-86dc-0608dc42d5fd" xlink:to="loc_jef_GuaranteesExpectedToBeDueYearOne_019f945c-3b53-7648-b364-f2018dadce1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_GuaranteesExpectedToBeDueYearTwoAndThree_019f945c-3b53-7779-966c-2f12b18755ab" xlink:href="jef-20260831.xsd#jef_GuaranteesExpectedToBeDueYearTwoAndThree"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_019f945c-3b53-71aa-86dc-0608dc42d5fd" xlink:to="loc_jef_GuaranteesExpectedToBeDueYearTwoAndThree_019f945c-3b53-7779-966c-2f12b18755ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_jef_GuaranteesExpectedToBeDueYearFourAndFive_019f945c-3b53-7904-a2d0-71d5b002c8b6" xlink:href="jef-20260831.xsd#jef_GuaranteesExpectedToBeDueYearFourAndFive"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_019f945c-3b53-71aa-86dc-0608dc42d5fd" xlink:to="loc_jef_GuaranteesExpectedToBeDueYearFourAndFive_019f945c-3b53-7904-a2d0-71d5b002c8b6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/SegmentReportingNetRevenuesExpensesandTotalAssetsbySegmentDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#SegmentReportingNetRevenuesExpensesandTotalAssetsbySegmentDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/SegmentReportingNetRevenuesExpensesandTotalAssetsbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_019f945c-3b53-7ebb-9508-82c36e488db5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoninterestIncome_019f945c-3b53-7df6-9456-ed2c35ed5eb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoninterestIncome"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019f945c-3b53-7ebb-9508-82c36e488db5" xlink:to="loc_us-gaap_NoninterestIncome_019f945c-3b53-7df6-9456-ed2c35ed5eb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeOperating_019f945c-3b53-7307-93ef-d191830c4e5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InterestIncomeOperating"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_019f945c-3b53-7ebb-9508-82c36e488db5" xlink:to="loc_us-gaap_InterestIncomeOperating_019f945c-3b53-7307-93ef-d191830c4e5d" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.jefferies.com/role/SegmentReportingReconciliationofReportableSegmentInformationDetails" xlink:type="simple" xlink:href="jef-20260831.xsd#SegmentReportingReconciliationofReportableSegmentInformationDetails"/>
  <link:calculationLink xlink:role="http://www.jefferies.com/role/SegmentReportingReconciliationofReportableSegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-3b53-77d2-ae81-5acfb43ffe09" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019f945c-3b53-7a23-99b1-ff360b85fe10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-3b53-77d2-ae81-5acfb43ffe09" xlink:to="loc_us-gaap_OperatingIncomeLoss_019f945c-3b53-7a23-99b1-ff360b85fe10" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncome_019f945c-3b53-7343-b700-bc4fcecbbfde" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherOperatingIncome"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="https://xbrl.org/2023/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019f945c-3b53-77d2-ae81-5acfb43ffe09" xlink:to="loc_us-gaap_OtherOperatingIncome_019f945c-3b53-7343-b700-bc4fcecbbfde" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
