Build a Sample U.P.C. Barcode

The number in a U.P.C. barcode (called a GTIN) is typically 12 digits long. This wizard helps illustrate how you create a GTIN-12.

  • It starts with your U.P.C. Company Prefix that was assigned to your company when they became a member of GS1 US. Your U.P.C. Company Prefix could be between six and ten digits long.
  • The next one to five digits are for the item reference numbers that you will assign to your unique product variations
  • The 12th digit is called the check digit, which is calculated based on the other numbers in the GTIN-12 and ensures accuracy.

Create Your GTIN-12

  1. Find your GS1 Company Prefix Certificate to get your U.P.C. Company Prefix.
    Your company received the certificate when they became a member of GS1 US.

    If you don't have a copy of your Prefix Certificate, you can log in to myGS1 US and view or download a copy here.
  2. Follow the instructions on the wizard below.

Now that you know how to create a GTIN-12, explore these resources for creating more GTIN-12s and U.P.C. barcodes:

  • Solution Provider Finder – Find a GS1 US Solution Provider to create your GTINs and barcodes for you.
  • GS1 US DataHub | Product – Identify your products and create barcodes in a tool that backs up your product data in a secure environment. With GS1 US Data Hub | Product, you can create barcodes and manage and share your products. You currently need an annual GS1 Company prefix license to access GS1 US Data Hub | Product
  • Get Started Roadmap – Learn more about creating product identification, choosing the right barcode type, getting the barcodes on your products, and more.
  • GS1 US University – Improve your use of GS1 Standards with live online training classes, in-person workshops and certification classes, self-paced online learning, and videos.