UPC vs EAN Barcodes: What’s the Difference?

If you’ve ever looked at a UPC and an EAN barcode side by side, you’ll notice they look almost identical — same black-and-white line pattern, same general shape. The difference is smaller than it looks, but it matters a lot if you’re selling products internationally.

The Core Difference: Digit Count

  • UPC (Universal Product Code): 12 digits, used primarily in the United States and Canada.
  • EAN (European Article Number): 13 digits, used internationally, especially in Europe.

The extra digit in EAN is essentially a country/region prefix added to the front. In fact, a UPC-A code is technically a subset of EAN-13 — add a leading zero to a 12-digit UPC and you get a valid 13-digit EAN. This is why most modern barcode scanners read both formats without any special configuration.

Want to learn more? Explore our related QR code and barcode guides for more helpful tips, how-to guides, and useful information.

Which One Do You Need?

  • Selling only in the US/Canada through a smaller retailer or your own site: UPC is generally the standard expected.
  • Selling internationally, or through European marketplaces: EAN is required, since it’s the standard format outside North America.
  • Selling on Amazon or major global marketplaces: Many platforms accept both, but check the specific marketplace’s requirements — some regions specifically require GS1-issued EANs.

How to Get One

Both UPC and EAN codes need to be registered through GS1, the global organization that assigns unique product codes, to be considered “real” for retail use. Cheap unofficial UPC/EAN numbers sold outside GS1 can cause listing rejections on major platforms like Amazon, since they’re not guaranteed unique.

Common Mistakes

  • Assuming a UPC works everywhere. Some European retailers and marketplaces will reject a 12-digit UPC outright if they require EAN-13 specifically.
  • Generating a barcode without a registered number. A valid-looking barcode image is worthless for retail if the underlying number isn’t actually registered to your product through GS1.
  • Mixing up UPC-A and UPC-E. UPC-E is a compressed 6-digit version used on small packaging — it’s not interchangeable with standard UPC-A without proper conversion.

Real Use Case

A small business selling in the US wants to expand onto a European marketplace. Their existing UPC codes technically still work once converted to EAN-13 format (just add a leading zero), so they don’t need to re-register every product from scratch — just update their listings with the converted barcode format.

Wrapping Up

UPC and EAN aren’t competing systems — EAN is really just the international superset of UPC. Once you know which one your market requires, generating the actual barcode image is the easy part. Our Barcode Generator supports both UPC and EAN formats, so you can create the right one for wherever you’re selling.

FAQ

Can a UPC code be converted to EAN?
Yes — just add a leading zero to a 12-digit UPC to get a valid 13-digit EAN. Most scanners read both formats interchangeably.

Do I need to register my barcode number before using it?
For real retail use (especially on major marketplaces), yes — through GS1. An unregistered barcode image may not be accepted or could conflict with another product.

Does Amazon require UPC or EAN?
It depends on the marketplace region — Amazon US generally accepts UPC, while European Amazon sites typically require EAN. Check your specific marketplace’s listing requirements.

Similar Posts