<SEC-DOCUMENT>0000899243-16-026440.txt : 20160805
<SEC-HEADER>0000899243-16-026440.hdr.sgml : 20160805
<ACCEPTANCE-DATETIME>20160805174459
ACCESSION NUMBER:		0000899243-16-026440
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160805
FILED AS OF DATE:		20160805
DATE AS OF CHANGE:		20160805

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Novocure Ltd
		CENTRAL INDEX KEY:			0001645113
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				000000000

	BUSINESS ADDRESS:	
		STREET 1:		LE MASURIER HOUSE, LA RUE LE MASURIER
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE2 4YE
		BUSINESS PHONE:		44 (0)15 3475 6700

	MAIL ADDRESS:	
		STREET 1:		LE MASURIER HOUSE, LA RUE LE MASURIER
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE2 4YE

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Volati Ltd
		CENTRAL INDEX KEY:			0001654768

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37565
		FILM NUMBER:		161812182

	BUSINESS ADDRESS:	
		STREET 1:		CHARTER PLACE, 23-27 SEATON PLACE
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE1 1JY
		BUSINESS PHONE:		44 (0)1534 835815

	MAIL ADDRESS:	
		STREET 1:		CHARTER PLACE, 23-27 SEATON PLACE
		CITY:			ST. HELIER
		STATE:			Y9
		ZIP:			JE1 1JY
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-08-05</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001645113</issuerCik>
        <issuerName>Novocure Ltd</issuerName>
        <issuerTradingSymbol>NVCR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001654768</rptOwnerCik>
            <rptOwnerName>Volati Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>CHARTER PLACE, 23-27 SEATON PLACE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. HELIER (CHANNEL ISLANDS)</rptOwnerCity>
            <rptOwnerState>Y9</rptOwnerState>
            <rptOwnerZipCode>JE115Y</rptOwnerZipCode>
            <rptOwnerStateDescription>JERSEY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2016-08-05</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>676576</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7216789</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Dividend distribution to Oden Trust, the beneficial owner of Volati Limited, which in turn distributed the shares to Gert Lennart Perlhagen, a beneficiary of the Oden Trust.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Stuart McInnes</signatureName>
        <signatureDate>2016-08-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
