<SEC-DOCUMENT>0000864749-20-000006.txt : 20200127
<SEC-HEADER>0000864749-20-000006.hdr.sgml : 20200127
<ACCEPTANCE-DATETIME>20200127181522
ACCESSION NUMBER:		0000864749-20-000006
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200104
FILED AS OF DATE:		20200127
DATE AS OF CHANGE:		20200127

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Barnes David G
		CENTRAL INDEX KEY:			0001600337

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14845
		FILM NUMBER:		20550925

	MAIL ADDRESS:	
		STREET 1:		6175 S WILLOW DR
		STREET 2:		10TH FLOOR
		CITY:			GREENWOOD VILLAGE
		STATE:			CO
		ZIP:			80111

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRIMBLE INC.
		CENTRAL INDEX KEY:			0000864749
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		IRS NUMBER:				942802192
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0103

	BUSINESS ADDRESS:	
		STREET 1:		935 STEWART DRIVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085
		BUSINESS PHONE:		4084818000

	MAIL ADDRESS:	
		STREET 1:		935 STEWART DRIVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TRIMBLE NAVIGATION LTD /CA/
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>wf-form3a_158016690422213.xml
<DESCRIPTION>FORM 3/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2020-01-04</periodOfReport>

    <dateOfOriginalSubmission>2020-01-14</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000864749</issuerCik>
        <issuerName>TRIMBLE INC.</issuerName>
        <issuerTradingSymbol>TRMB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001600337</rptOwnerCik>
            <rptOwnerName>Barnes David G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TRIMBLE INC.</rptOwnerStreet1>
            <rptOwnerStreet2>935 STEWART DRIVE</rptOwnerStreet2>
            <rptOwnerCity>SUNNYVALE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94058</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>40.4</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2029-12-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>29455.0</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">40% of the shares subject to the Option shall vest and become exercisable on the second anniversary of the date of grant, and 1/36th of the shares subject to the Option shall vest each month thereafter untilfully vested.</footnote>
        <footnote id="F2">The original Form 3 inadvertently understated the number of Employee Stock Option by 19,455 shares, and this amendment is being filed to correct the error and reflect the total number of Employee Stock Option underlying the award.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ James A. Kirkland, as Attorney-in-Fact</signatureName>
        <signatureDate>2020-01-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
