

Have something else? Reach out to support@smartscout.com and we’d love to chat.
It gives a directional estimate built on Amazon sales rank and cross-checked against additional data sources and real brand sales. No tool can be exact, since Amazon does not publish unit sales, but it is reliable enough to compare products and size a niche with confidence.
Two things: the product's category and its Best Sellers Rank. That is enough to return a monthly estimate.
A Best Sellers Rank only tells you relative position. It does not tell you how many units that position represents, and the rank-to-sales curve is too steep to estimate in your head. The tool converts the rank into an actual sales figure so you are comparing volume, not guessing from rank.
Yes. The estimate runs across the marketplaces SmartScout supports, so you can check demand in the region you sell in.
Some products have no rank because Amazon's category system does not cover everything. Without a rank, there is nothing to convert, so an estimate may not be available for those items.
It starts from sales rank, then triangulates against external data and direct sales signals from large brands, and refines using Amazon's "bought in the past month" figures. The method is stated rather than hidden, so you can judge the estimate on its logic.