Free Bulk UPC-A Barcode Generator for Retail
The Universal Product Code (UPC-A) is the standard barcode format for retail products in North America. It strictly consists of 12 numerical digits. This tool is perfect for creating retail packaging labels, Amazon FBA product labels, and standardizing your physical inventory.
Understanding the 12 Digits of a UPC-A
A valid UPC-A barcode is not just a random string of numbers. It follows a specific structure managed by GS1 to ensure global uniqueness:
- Number System Character (Digit 1): Indicates the type of product (e.g., 0, 1, 6, 7, 8 for regular items, 2 for random weight items, 3 for pharmaceuticals).
- Manufacturer Code (Digits 2-6): A unique 5-digit number assigned to your company by GS1.
- Product Code (Digits 7-11): A unique 5-digit number you assign to a specific product variant (color, size, etc.).
- Check Digit (Digit 12): A calculated mathematical digit used by scanners to verify the code was read correctly.
Important Note for Retailers: If you plan to sell your products in major big-box retailers (like Walmart, Target, or major grocery chains), you must purchase official GS1-issued GTINs. Generating random 12-digit numbers may result in conflicts and your products being rejected. For internal inventory, small boutiques, or specific online platforms, self-generated codes may suffice.
UPC-A FAQs
If you are selling in major retail stores, yes, you need a GS1-issued GTIN. For internal use or some online marketplaces, you might be able to use generated codes, but always check the platform's requirements.
UPC-A always consists of 12 digits: a number system character, a 5-digit manufacturer code, a 5-digit product code, and a check digit.
Our generator requires a full 12-digit UPC-A to render properly. If you have an 11-digit code, it is missing the check digit. You must calculate and append the check digit before generating.