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This page provides information for each GS1 ID Key, shows how the calculator works and even provides you step by step instructions on how to manually calculate the check digit by using the simple algorithm, should the need arise.
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).
Check digit calculator; Who owns this barcode? GMN generator; Other services & tools
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.
With this check digit calculator, you can confirm the integrity of a barcode. Whether you're trying to determine the last digit of the GTIN code or simply ensuring you didn't make a typo, all you need to do is spend a few seconds copying the code into our calculator.
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. The table below explains which GTINs usually appear in which GS1 barcodes.
Check Digit Calculation. Check Digit Validation. Your challenge consists of writing a Python program that will receive a 12-digit UPC barcode (11 digits + 1 check digit). Your Python script will then calculate the expected check digit matching the 11-digit product code.
