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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-11-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001415336</issuerCik>
        <issuerName>Zeltiq Aesthetics Inc</issuerName>
        <issuerTradingSymbol>ZLTQ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001317308</rptOwnerCik>
            <rptOwnerName>ATV Associates VII, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVANCED TECHNOLOGY VENTURERS</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET, SUITE 1380</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001138942</rptOwnerCik>
            <rptOwnerName>ADVANCED TECHNOLOGY VENTURES VII LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVANCED TECHNOLOGY VENTURERS</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET, SUITE 1380</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001294525</rptOwnerCik>
            <rptOwnerName>Advanced Technology Ventures VII(B), L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVANCED TECHNOLOGY VENTURERS</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET, SUITE 1380</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001294527</rptOwnerCik>
            <rptOwnerName>Advanced Technology Ventures VII(C), L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVANCED TECHNOLOGY VENTURERS</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET, SUITE 1380</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001294513</rptOwnerCik>
            <rptOwnerName>ATV Entrepreneurs VII, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVANCED TECHNOLOGY VENTURERS</rptOwnerStreet1>
            <rptOwnerStreet2>500 BOYLSTON STREET, SUITE 1380</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</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>2013-11-14</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4025000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.22</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3876221</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Funds</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares sold by the Funds (as hereafter defined) to certain underwriters in connection with a registered public offering.  Advanced Technology Ventures VII, L.P. (&quot;ATV VII&quot;) sold 3,778,002 shares.  Advanced Technology Ventures VII (B), L.P. (&quot;ATV VIIB&quot;) sold 151,610 shares.  Advanced Technology Ventures VII (C), L.P. (&quot;ATV VIIC&quot;) sold 72,872 shares.  ATV Entrepreneurs VII, L.P. (&quot;ATVE VII&quot; and collectively with AVT VII, ATV VIIB and ATV VIIC, the &quot;Funds&quot;) sold 22,516 shares.</footnote>
        <footnote id="F2">ATV VII holds 3,638,356 shares.  ATV VIIB holds 146,004 shares.  ATV VIIC holds 70,179 shares.  ATVE VII holds 21,682 shares.</footnote>
        <footnote id="F3">The shares are held directly by the Funds.  ATV Associates VII, L.L.C. is the general partner of ATV VII, ATV VIIB, ATV VIIC and ATVE VII.  ATV Associates VII, L.L.C. and each of the other reporting persons disclaims beneficial ownership of the securities except to the extent of their respective pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jean George, Managing Director</signatureName>
        <signatureDate>2013-11-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ ATV Associates VII, L.L.C., Its General Partner, by Jean George, Managing Director</signatureName>
        <signatureDate>2013-11-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ ATV Associates VII, L.L.C., Its General Partner, by Jean George, Managing Director</signatureName>
        <signatureDate>2013-11-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ ATV Associates VII, L.L.C., Its General Partner, by Jean George, Managing Director</signatureName>
        <signatureDate>2013-11-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ ATV Associates VII, L.L.C., Its General Partner, by Jean George, Managing Director</signatureName>
        <signatureDate>2013-11-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
