📐 Technical Specifications
- Standard
- ISO/IEC 15420 / GS1 US Standards
- Character Set
- Numeric digits only (0–9)
- Payload Length
- 11 data digits + 1 Mod-10 check digit (total 12 digits)
- Magnification
- 80% to 200% (Nominal size: 1.469" × 1.02")
- Quiet Zones
- Left and Right: 9X module width minimum
🏭 Standard Industry Use Cases
- ✓ United States and Canada retail store checkout
- ✓ Amazon North America FBA product labeling
- ✓ Wholesale packaging and consumer goods
- ✓ Inventory tracking in big-box retail (Walmart, Target)
Frequently Asked Questions
What is the difference between UPC-A and EAN-13?
UPC-A is a 12-digit standard primarily used in the USA and Canada, while EAN-13 is a 13-digit standard used across the rest of the world. In fact, a UPC-A code is simply an EAN-13 code with a leading zero.
Does this generator check my UPC-A check digit?
Yes. Enter either 11 digits to have the check digit automatically appended, or enter all 12 digits to have the check digit mathematically verified against GS1 Mod-10 specifications.
Can I print UPC-A barcodes on Avery sticky labels?
Yes! Open the generator, click "PDF Labels", and choose from Avery 5160 (30 address labels) or Avery 5163 (10 shipping labels) to print directly onto standard label sheets.