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COEXDIS > Check digit calculator

Check digit calculator

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.

Check digit calculator

GS1 key without check digit

What is a check digit?

The last digit of all fixed-length, numeric GS1 Identification Keys is a check digit that ensures the integrity of the key.
All GS1 ID Keys need a check digit, except Component/Part Identifier (CPID) and Global Individual Asset Identifier (GIAI). Global Model Number (GMN) includes a pair of check characters rather than a single check digit.

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.

How does the check digit calculator work?

The check digit is calculated using a simple algorithm, based on the other numbers in the key.
Find out how to calculate a check digit manually.

Did you know?

GS1 Pakistan

Email: info@gs1pk.org

Phone: +92 21 2628213

Azzainab Court, Campbell Street

 

74200 Karachi

Pakistan

Did you know?

GS1 Pakistan

Email: info@gs1pk.org

Phone: +92 21 2628213

Azzainab Court, Campbell Street

 

74200 Karachi

Pakistan

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