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Use our check digit calculator below to calculate a check digit. What is a check digit? The last digit of all fixed-length, numeric GS1 Identification Keys is a check digit that ensures the integrity of the key. All GS1 ID Keys need a check digit, except Component/Part Identifier (CPID) and Global Individual Asset Identifier (GIAI).
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The check digit is the last barcode number that makes sure...
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Use the check digit calculator to verify a UPC or EAN barcode.
Use GS1's UPC check digit calculator to confirm the integrity of your barcode number.
This calculator can be used to work out the check digit for your GTINs, and for the 18-digit SSCC (serial shipping container code) used to identify logistics units. Choose the appropriate GTIN or SSCC option from the dropdown list opposite.
To calculate your check digit, use our easy calculator below. Simply enter the first numbers for the barcode you wish to create a check digit. GTIN-12 (UPC-12):
A 100% free barcode check digit calculator and validator. Simple to use. Free for life. ️Generate Barcode Check Digits ️Validate Barcodes ️Single barcode and bulk mode
The check digit is the last barcode number that makes sure the barcode is correctly composed. Find out here how to calculate your check digit manually.
