How the Amazon sales estimator works
Every product on Amazon has a Best Sellers Rank (BSR), also called sales rank. A lower number means it sells more. BSR #1 in a category is the top seller; BSR #100,000 barely moves. The catch: the same BSR means very different sales in different categories, because each category has a different number of products competing.
Reading the result
This tool maps the BSR you enter to a typical monthly unit estimate for that category. Use it to sanity-check demand before you buy. A product ranked 1,000 in Home & Kitchen sells far more than one ranked 1,000 in a tiny niche.
What's a good BSR for arbitrage?
For online and retail arbitrage you usually want products that sell at least a few units a day and aren't dominated by Amazon or one giant seller. Steady mid-range demand beats a single hot item that sells out and dies. Pair this with the profit math in the FBA Profit Calculator to find deals that actually make money.
Want to watch me do this on real products? Grab a free seat on the training or read how to find profitable products.