Estimate how many units an Amazon product sells from its Best Seller Rank. Enter a BSR and a list price to see monthly and daily sales plus revenue. Completely free!
Grab the BSR from the product details section of any Amazon listing and type it in. The lower the rank, the higher the estimated sales.
Get estimated monthly sales, monthly revenue, and a daily breakdown right away. Copy the full estimate with one tap to save or share it.
Enter the product's current selling price so the estimator can turn units into revenue. The marketplace is set to Amazon.com (US).
Free To Use
Run as many estimates as you want with no account, no login, and no card on file. Nothing to install, nothing to pay.
Instant Numbers
The whole calculation happens in your browser, so results land with no loading and no wait. Type a rank and a price and the estimate is there.
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Every estimate shows units and dollars on both a monthly and a daily basis, so you can picture how fast a product is really moving.
Amazon puts a Best Seller Rank on nearly every product, but the rank alone doesnot tell you much on its own. This tool reads that rank against a sales curve, then usesyour list price to estimate the units and the revenue behind it. In a few seconds youcan weigh up a product, gauge a niche, or check a rival before you spend time or moneychasing it.


Sales volume is the number that decides whether a product or a category is worth pursuing. Line up a few ranks and prices to see which listings actually move units,where demand is real, and which corners of a niche might be worth a closer look. It turns a rough hunch into something you can measure and compare.