UPC-A vs EAN-13
The practical difference between UPC-A and EAN-13 barcode numbers.
UPC-A Uses 12 Digits
UPC-A is common in North American retail workflows. It uses 11 data digits plus one check digit.
EAN-13 Uses 13 Digits
EAN-13 is common internationally. It uses 12 data digits plus one check digit and is part of the GTIN family.
Choose by the Number You Have
Use a UPC-A tool for 12 digit UPCs. Use an EAN-13 tool for 13 digit EANs. Do not pad or trim digits unless your workflow explicitly requires it.