In the following you can see a calculation example for Modulo 10 using Code 25: The result of this subtraction is the checksum/check digit. The remainder of the division is subtracted from 10 (calculate the difference to 10). The modulo 10 is calculated from this sum. These resulting results are added to a sum. Then the individual useful digits are multiplied by the weighting. However, weighting 3 starts at the first useful digit from the left. With the Code 25 Codes, the check digit is also calculated with weighting 3 according to the Modulo 10 calculation method.
The following is a calculation example for Modulo 10 using an EAN-13 code: The remainder of the division is subtracted from 10.
Then the individual digits are multiplied by the weighting. Weighting 3 starts at the first digit from the right.
With the EAN codes the check digit is calculated according to the modulo 10 calculation method with the weighting 3. This documentation is only for the sake of completeness.Ĭalculation of a checksum according to Modulo 10:Ī check digit according to Modulo 10 is used by EAN codes, e.g. ActiveBarcode calculates this check digits for most codes automatically.
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