What is UPC-A Barcode?

UPC-A is the 12-digit barcode used on virtually every retail product sold in the United States and Canada.

How do I look up a upc-a barcode barcode?

Enter any barcode at upc.dev or call GET /v1/product/{barcode}. upc.dev aggregates dozens of authoritative sources and returns name, brand, category, recalls, and full intelligence.

Is UPC-A Barcode the same worldwide?

UPC-A Barcode is part of the GS1 global identification system. Check digits, prefix ranges, and format rules are standardized globally.

Where can I see a real UPC-A Barcode example?

Live example from the canonical catalog: 000000000307. View full intelligence at https://upc.dev/product/000000000307

UPC-A Barcode — Barcode Guide

What is UPC-A?

UPC-A (Universal Product Code — Version A) is a 12-digit barcode symbology used extensively for tracking trade items in stores. Developed in the 1970s, it was the first barcode widely adopted in North America. Every digit encodes specific information about the product and its manufacturer.

Digit Structure

0

Number System

X

Manufacturer

X

Manufacturer

X

Manufacturer

X

Manufacturer

X

Item Code

X

Item Code

X

Item Code

X

Item Code

X

Item Code

X

Manufacturer

C

Check Digit

Digits 2–6: Company prefix (assigned by GS1). Digits 7–11: Item reference (assigned by manufacturer). Digit 12: Check digit (mathematically derived).

Live Example from Database

Real Product UPC-A

000000000307 View full product intelligence →

Check Digit Formula

Multiply odd-position digits (1,3,5,7,9,11) by 3
Sum all digits + (odd-position-sum × 3)
Check digit = (10 - (sum % 10)) % 10

Full check digit tutorial →