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.

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!

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

Nov 6, 2025 · Calculated from the preceding numbers, the last digit of a barcode is the “check digit.” The free calculator will determine the correct check digit for all forms of GTIN identification.

Free check digit calculator. Calculate check digits using Luhn algorithm or Mod 10 method.

The check digit is calculated from all the other numbers in the barcode and helps to confirm the integrity of your barcode number. Simply enter the ID Number below and the Check Digit Calculator will …

This is a bulk EAN, UPC and GTIN check digit calculator and validator that will calculate and validate check digits in bulk for the following valid types of barcode standards:

May 14, 2025 · Calculate or verify check digits for various identification numbers including UPC, ISBN, GTIN, credit cards, and more.

Calculate check digits using Luhn algorithm and other validation methods. Verify credit card numbers, barcodes, account numbers, and more with our free online tool.

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.