<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-08-10</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001651562</issuerCik>
        <issuerName>Coursera, Inc.</issuerName>
        <issuerTradingSymbol>COUR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855511</rptOwnerCik>
            <rptOwnerName>G Squared Equity Management LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHIGAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855515</rptOwnerCik>
            <rptOwnerName>G Squared Coursera IV LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855512</rptOwnerCik>
            <rptOwnerName>G Squared Equity LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855516</rptOwnerCik>
            <rptOwnerName>G Squared Coursera III LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001855517</rptOwnerCik>
            <rptOwnerName>G Squared Coursera II LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001703098</rptOwnerCik>
            <rptOwnerName>G Squared Coursera LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001605304</rptOwnerCik>
            <rptOwnerName>Aschebrook Larry Lee</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O G SQUARED</rptOwnerStreet1>
            <rptOwnerStreet2>205 N. MICHIGAN AVENUE, SUITE 3770</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-08-10</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3273025</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12197337</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On August 10, 2021, the Reporting Persons made the following distributions-in-kind, without consideration, to their respective general partners and limited partners: (i) G Squared Coursera LLC (&quot;GSC&quot;) distributed 2,500,000 shares of Common Stock of the Issuer (the &quot;Common Stock&quot;), (ii) G Squared Coursera II LLC (&quot;GSC II&quot;) distributed 499,998 shares of Common Stock, (iii) G Squared Coursera III LLC (&quot;GSC III&quot;) distributed 100,000 shares of Common Stock and (iv) G Squared Coursera IV LLC (&quot;GSC IV&quot;) distributed 173,027 shares of Common Stock. The foregoing distributions were made in accordance with the exemption under Rule 16a-9(a) and Rule 16a-13 of the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;).</footnote>
        <footnote id="F2">Following the reported transactions, the shares held by the Reporting Persons are as follows: (i) 3,628,987 shares held of record by G Squared Opportunities ICAV (&quot;GS ICAV&quot;), (ii) 2,678,456 shares of held of record by G Squared Opportunities Fund IV LLC (&quot;GSOF IV&quot;), (iii) 1,597,880 shares held of record by Venture-GSquared Investments LP Fund (&quot;VGI&quot;), (iv) 829,899 shares held of record by G Squared IV, LP (&quot;GS IV&quot;), (v) 926,990 shares held of record by G Squared IV, SCSp (&quot;GS SCS&quot;), (vi) 0 shares held of record by GSC IV, (vii) 513,342 shares held of record by G Squared V LP (&quot;GS V&quot;), (viii) 136,658 shares held of record by G Squared Opportunities Fund V LLC (&quot;GSOF V&quot;), (ix) 205,647 shares held of record by G Squared Special Situations Fund LLC (&quot;GSSS&quot;) (x) 504,168 shares held of record by G Squared Opportunities Fund I LLC (&quot;GSOF I&quot;)</footnote>
        <footnote id="F3">(Continued from footnote 2) (xi) 3,558 shares held of record by G Squared Opportunities Fund II LLC (&quot;GSOF II&quot;), (xii) 0 shares held of record by GSC, (xiii) 1,171,752 shares held of record by G Squared Opportunities Fund, Series C-7 (&quot;GSOF 7&quot;), (xiv) 0 shares held of record by GSC II and (xv) 0 shares held of record by GSC III.</footnote>
        <footnote id="F4">G Squared Equity Management LP (&quot;GSEM&quot;) is the sole general partner of G Squared Equity GP V, LLC (&quot;GP V&quot;), which is the sole general partner of GS V. GSEM is the sole general partner of G Squared Equity GP IV (&quot;GP IV&quot;), which is the sole general partner of GS IV. GSEM is the sole general partner of G Squared Equity GP S.a.r.l. (&quot;GP SARL&quot;), which is the sole general partner of GS SCS. GSEM is the sole managing partner and investment adviser to each of GSC IV, GSOF IV, GSOF V, GS ICAV, GSSS, and VGI (together with GS V, GS IV and GS SCS, the &quot;GSEM Funds&quot;). Larry Aschebrook (&quot;Aschebrook&quot;) is the Managing Partner of GSEM, and has sole voting and dispositive control over the shares held of record by the GSEM Funds.</footnote>
        <footnote id="F5">G Squared Equity LLC (&quot;GSE&quot;) is the sole manager and investment adviser to each of GSC, GSC II, GSC III, GSOF I, GSOF II and GSOF 7 (the &quot;GSE Funds&quot;). Aschebrook is the Managing Partner of GSE, and has sole voting and dispositive control over the shares held of record by the GSE Funds.</footnote>
        <footnote id="F6">Each of GSEM, GSE, GP V, GP IV, GP SARL and Aschebrook disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Exchange Act, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>G SQUARED EQUITY MANAGEMENT LP, By: Larry Aschebrook, Title: Managing Partner, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>G SQUARED COURSERA IV LLC, By: G Squared Equity Management LP, By: Larry Aschebrook, Title: Authorized Representative, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>G SQUARED EQUITY LLC, By: Larry Aschebrook, Title: Managing Partner, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>G SQUARED COURSERA III LLC, By: G Squared Equity LLC, By: Larry Aschebrook, Title: Authorized Representative, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>G SQUARED COURSERA II LLC, By: G Squared Equity LLC, By: Larry Aschebrook, Title: Authorized Representative, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>G SQUARED COURSERA LLC, By: G Squared Equity LLC, By: Larry Aschebrook, Title: Authorized Representative, /s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Larry Aschebrook</signatureName>
        <signatureDate>2021-08-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
