The last digit of a barcode number is a check digit. A check digit is the result of a mathematical calculation performed on the preceding digits in your number and makes sure the barcode is composed correctly. The Check Digit Calculator, below, helps you generate complete, accurate barcodes from the information you provide. For more information, click here.

Need in-person help using GS1 standards, tools and solutions?
Free, one-on-one meetings and demonstrations with our Member Support team are available at GS1 Connect in Las Vegas June 5-6 for registered conference attendees. Contact +1 937.435.3870 (option 6) or gs1connect@gs1us.org to schedule your appointment now.