Free UPC to ASIN Converter

How to Convert UPC to ASIN

One barcode takes under a minute. A full supplier list takes one upload.

1. 1

   Enter the UPC

   Paste a 12-digit UPC into the converter above and choose the Amazon marketplace. The free converter checks one UPC at a time.

2. 2

   Click Convert UPC to ASIN

   The tool searches the Amazon catalog for that barcode and lists every listing it finds.

3. 3

   Pick the Right Listing

   Check the pack size and title of each result, then note the ASIN or open it in ASIN Lookup to see price and sales data.

4. 4

   For Supplier Lists, Use Price List Analyzer

   Upload a price list with hundreds of UPCs to Price List Analyzer. It converts every row to an ASIN and adds fees, profit, ROI and selling restrictions.

Amazon UPC Code Lookup: Search Amazon by UPC

Amazon product pages rarely show the barcode, and a UPC typed into the Amazon search box often returns a similar item or a different pack size instead of the exact listing.

The converter skips the search box. It looks the UPC up in the Amazon catalog itself and returns the listings that carry that exact barcode, with the ASIN, title, image and category of each.

It works on amazon.com and 10 other marketplaces, so you can check whether a US supplier's product already sells in Canada, the UK or Europe.

UPC vs ASIN: What the Converter Matches

A UPC is the 12-digit barcode a manufacturer gets from GS1 US. Suppliers, distributors and retail stores use it to identify the product.

An ASIN is the 10-character ID Amazon gives to a listing, such as B00U26V4VQ. Prices, fees, sales rank and Buy Box data on Amazon are all tied to the ASIN, not to the barcode.

An EAN is the 13-digit version used outside North America. Add a leading zero to a UPC and you get its EAN. To go the other way, from an Amazon listing to its barcode, use the ASIN to UPC converter; it also has a full ASIN, UPC and EAN comparison.

What If No ASIN Is Found?

An empty result usually has one of four causes.

• The code is mistyped or incomplete. A UPC has 12 digits. Count them, and check that a spreadsheet has not dropped a leading zero: Excel removes it when it stores the code as a number.
• It is an EAN. Codes with 13 digits are EANs. Try the EAN to ASIN converter.
• The product sells on another marketplace. Switch the marketplace: some products are listed in the UK or Germany but not in the US.
• The listing has no barcode, or there is no listing. Brands with a GTIN exemption can list without a UPC, and some products have never been on Amazon. Search Amazon by the product title. If nobody sells it yet, you would need to create a new listing.

Frequently Asked Questions