Barcode Check Digit Calculator



Calculate GTIN (EAN/UPC) check digit by entering all the numbers that appear under the barcode.

Example: 075678164125 | 6001240720288


Barcode number 731405630089 has a correct check digit.

Check Digit Calculation

Position: 1 2 3 4 5 6 7 8 9 10 11 12
Digits: 7 3 1 4 0 5 6 3 0 0 8 9
Mutiply digits by: 3 1 3 1 3 1 3 1 3 1 3
= 21 3 3 4 0 5 18 3 0 0 24
Calculate total sum: 81
Calculate modulo 10: Subtract the sum from nearest equal or higher multiple of ten
=> 90 - 81 = 9 (check digit)
Correct Number: 7 3 1 4 0 5 6 3 0 0 8 9

Remarks:

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