EAN-13 vs UPC-A — Which Retail Barcode Standard?
Compare EAN-13 and UPC-A barcode standards. Learn the differences in digit count, geographic use, and which standard to use for retail products.
| Feature | EAN-13 | UPC-A |
|---|---|---|
| Digit Count | 13 digits | 12 digits |
| Primary Market | Global (Europe, Asia, worldwide) | US and Canada |
| Country Identifier | Yes (first 2-3 digits) | No |
| Relationship | EAN-13 with leading 0 = UPC-A | UPC-A = EAN-13 minus leading 0 |
| US Retailers | Accepted (usually) | Required/standard |
| European Retailers | Required | Typically need EAN-13 |
| Amazon Listings | Accepted | Accepted |
| GS1 Registration Required | Yes | Yes |
Verdict
If you're selling globally, register for an EAN-13 barcode through GS1 — it works everywhere. If you're only selling in the US/Canada, UPC-A suffices, but EAN-13 is still the better long-term choice. The two systems are interconvertible, so one investment covers both markets.
The Relationship Between UPC and EAN
UPC-A and EAN-13 are deeply related. EAN-13 was designed to be compatible with the existing UPC-A system: every UPC-A code is a valid EAN-13 code with a leading zero prepended. A UPC-A code of 012345678905 is identical to EAN-13 code 0012345678905. Modern barcode scanners understand both without any configuration. This backward compatibility allowed EAN-13 to achieve global adoption without disrupting the massive existing US retail infrastructure that had invested in UPC-A. GS1, the standards body managing both, now promotes EAN-13 as the unified global standard.
Buying vs Generating Barcodes
The GS1 barcode registration system requires joining GS1 as a member company, which provides a globally unique company prefix. Annual fees vary by country and expected number of products. For small businesses with a few products, GS1 US's 'GS1 US Startup' tier provides 10 barcodes for a one-time fee. For individual products without ongoing retail ambitions, third-party barcode brokers sell 'recycled' UPC/EAN numbers cheaply — but these may not be accepted by all retailers (Amazon explicitly requires GS1-issued barcodes for brand registry). The choice depends on your distribution channel requirements.
Frequently Asked Questions
Yes, for legitimate retail barcodes you should register with GS1 (the international standards body). GS1 membership provides a company prefix guaranteeing your codes are globally unique. Third-party barcode resellers offer cheaper individual barcodes, but major retailers (especially Amazon and Walmart) increasingly require GS1-registered barcodes.
Generally yes — most modern European POS systems can read UPC-A (treating it as EAN-13 with a leading zero). However, some older European systems may not. For guaranteed international compatibility, use EAN-13. Since UPC-A and EAN-13 are interconvertible, getting EAN-13 registration covers all markets.
GS1-128 (formerly UCC/EAN-128) is a barcode standard used in logistics and supply chain contexts. Unlike UPC/EAN which store just a product number, GS1-128 uses Application Identifiers (AIs) to encode structured data: expiry dates, lot numbers, serial numbers, and weights in a single barcode. It's used on shipping labels and cartons rather than consumer product labels.