Example
Input: 12 digits
Result: Checksum
What is EAN-13 Check Digit?
Modulo 10 alg.
How it Works
Sum odd/even * 3.
FAQ
UPC?
Similar logic.
Conclusion
Validates scanner readability.
Calculate last digit.
Input: 12 digits
Result: Checksum
Similar logic.
Validates scanner readability.
This calculator uses formulas and data standards from Standard References to ensure accuracy.
Interactive Calculator Loading...