UPC-A Barcode Generator (GTIN-12)
North American Retail Point-of-Sale Standard (ISO/IEC 15420) (Standard: ISO/IEC 15420 / GS1 US)
What is UPC-A Barcode Generator (GTIN-12)?
UPC-A (Universal Product Code) is a 12-digit numeric barcode symbology used to identify consumer items sold at retail point-of-sale checkout counters in the United States and Canada. It comprises an 11-digit company and item identifier followed by a mandatory 12th Modulo-10 checksum digit.
Technical Specifications
| Classification | 1D Fixed-Length Numeric Symbology |
|---|---|
| Capacité | Exactly 12 numeric digits (0-9) |
| Contrôle Checksum | GS1 Modulo-10 (Odd positions weighted × 3, even positions weighted × 1) |
| Zones de Silence | Minimum 9 times module width (approx. 3 mm) on both sides |
| Applications | Point-of-sale checkout scanning in USA and Canada consumer markets |
Frequently Asked Questions
- How does UPC-A relate to European EAN-13?
- UPC-A is structurally a subset of EAN-13. A 12-digit UPC-A barcode can be transformed into an EAN-13 by prepending a leading zero (0).