Tools

Check Digit Calculator

The last digit of a bar code number is a computer Check Digit which makes sure the bar code is correctly composed.
This page contains the following information:


  • GTIN Check Digit Calculator
  • SSCC Check Digit Calculator
  • How to Calculate a Check Digit Manually

GTIN Check Digit Calculator

Item Reference Number: (without Check Digit)

SSCC Check Digit Calculator

Item Reference Number:

(without Check Digit)

GTIN Check Digit Calculator
Item Reference Number (without Check Digit):
SSCC Check Digit Calculator
Item Reference Number (without Check Digit):

How to calculate a Check Digit manually

The following table gives an example to illustrate how a GTIN-13 Check Digit is calculated:

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