GS1 Checkdigit calculator - by dLSoft

This calculator produces the check digit used in common GS1 barcodes.

To calculate check digits for other barcode types please see the Barcode Checkdigit calculator .
To calculate ISSN check digits please see the ISSN Checkdigit calculator .

Select the required barcode/data structure from the list below then enter the digits in the box below. Finally push the calculate button to display the data complete with checkdigit.

12 digits required


High resolution barcode images may be obtained from the Barcodes Online service