The last digit of a barcode number is a computer check digit which makes sure the barcode is correctly composed. Use our check digit calculator below to calculate a check digit.

UPC check digit calculator Calculates check digits for UPC ITF-14, and SSCC-18 data. GS1 check digit calculator uses Mod 10 calculation

Here you can learn how to compute check digits for UPC-a barcode, see the maths and get the digit computed for your data.

Buy Authentic & Authorized UPC Bar Codes, EAN Bar Codes, Universal Product Codes, Barcodes, UPC Codes, Bar Codes & More. Fast Email Delivery of Barcode Image.

Calculate the check digit for any 12, 13, 14 digit GTIN and SSCC barcodes. Correct check digit ensures readability and decodability.

Calculate your UPC, EAN or SCC-14 code check digit! It’s a simple 5-step algorithm for check digit calculation at Simply Barcodes. Click here!

Online UPC-A/GTIN-12 barcode check digit calculator with support for batch calculations and autocorrect data.