A leading zero disappeared
Spreadsheet numeric formatting can turn a 12-position UPC into an 11-character string.
Set the source column to text and restore the identifier from an authoritative record.
UPC barcode generator
Generate a UPC-A barcode without losing a digit
UPC-A contains eleven data digits and one check digit. The configured generator preserves leading zeroes, makes the number-system position explicit and rejects values that a spreadsheet has shortened or whose final digit does not match.
01
Valid inputBarcode data
Identifier notice. BatchLabel generates the graphical representation of the number provided. It does not sell or assign official GTIN, EAN or UPC codes.
A practical workflow
How to use it
- 01
Preserve all positions
Paste the UPC as text, including a leading number-system zero when present.
- 02
Calculate or validate
Use eleven digits to calculate or twelve to check the complete value.
- 03
Print without fit-to-page
Export at the intended physical size and prevent the print dialog from rescaling it.
Avoid rework
Common errors and precise fixes
Using a made-up UPC for retail
A number can pass checksum validation without being legitimately assigned.
Obtain and manage identifiers through the appropriate issuing organization before rendering them.
Know the limits
The generator does not sell, register or confirm ownership of UPC Company Prefixes or GTINs.
Human-readable correctness does not measure printed symbol grade.
Questions, answered
Before you continue
Can I use an 11-digit UPC value?
Yes, if those are the eleven data digits. BatchLabel calculates and appends the twelfth check digit for review.
Can UPC-A be represented in EAN-13?
A UPC-A is often represented in GTIN-13 contexts with a leading zero, but you should follow the target system's expected representation and avoid transforming stored identifiers without a clear rule.