Barcode Check Digit Calculator
Calculate GTIN (EAN/UPC) check digit by entering all the numbers that appear under the barcode.
Barcode number 075678164125 has a correct check digit.
Check Digit Calculation
| Position: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Digits: | 0 | 7 | 5 | 6 | 7 | 8 | 1 | 6 | 4 | 1 | 2 | 5 |
| Mutiply digits by: | 3 | 1 | 3 | 1 | 3 | 1 | 3 | 1 | 3 | 1 | 3 | |
| = | 0 | 7 | 15 | 6 | 21 | 8 | 3 | 6 | 12 | 1 | 6 | |
| Calculate total sum: | 85 | |||||||||||
| Calculate modulo 10: | Subtract the sum from nearest equal or higher multiple of ten => 90 - 85 = 5 (check digit) |
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| Correct Number: | 0 | 7 | 5 | 6 | 7 | 8 | 1 | 6 | 4 | 1 | 2 | 5 |
Remarks:
- Check digit is the right most digit in the barcode number.
- Multipliers of 3,1,3,1 ... are always applied from the right to the left of the symbol. This way both EAN-13 and UPC-A will have same check digit (since UPC-A carries same data with one additional 0 on the left).