Calculate the check digit

The last digit of a GS1 identification key is a check digit that verifies if the barcode is composed correctly. Use the below calculation model to calculate the check digit.

Here you can calculate the check digit manually. 

Do you want to calculate multiple check digits at once?

Download the tool

Tip: use My Product Manager

As a GS1 Belgium & Luxembourg member you have free access to the My Product Manager tool.

Through this tool, you automatically generate a correct Global Trade Item Number (GTIN) with related barcode. And this includes a correct check digit!

Start with My Product Manager