Estimated sales per day
—
Enter a whole rank of 1 or higher from the book’s product details, then press Estimate sales.
Free publishing tool
Amazon BSR to Sales Calculator
Estimate sales across 12 Amazon stores and four book formats. You only get a number where a real sales curve exists, and estimated markets are marked Beta.
Guest allowance · 5 calculations per dayCreate a free account for 10 calculations per day. Pro members have unlimited calculator access.Sign in
Estimate a book’s salesWhole-sale rounding and the midpoint match AuthorScout 1.9.1.0. Amazon does not publish its ranking formula.
Enter the rank you see on Amazon.
Choose the matching store and format, then press Estimate sales for the most useful estimate.
Amazon marketplace
- United Statesamazon.com
- United Kingdomamazon.co.uk
- Germanyamazon.de
- Franceamazon.fr
- Italyamazon.it
- Spainamazon.es
- Canadaamazon.ca
- Japanamazon.co.jp
- Indiaamazon.in · Beta
- Mexicoamazon.com.mx · Beta
- Brazilamazon.com.br · Beta
- Australiaamazon.com.au · Beta
Read the rank correctly
BSR is a signal, not a sales receipt.
The useful question is not whether one estimate is perfect. It is whether the rank, competition, price, and recency make the book worth deeper research.
What BSR tells you
Amazon Best Sellers Rank reflects recent sales momentum inside a marketplace. Lower is stronger, but compare like with like: the same store and format.
Why it moves hourly
Recent sales carry extra weight. A promotion can improve rank quickly; a quiet period can reverse it just as fast.
Why estimates are ranges
Amazon keeps the formula private and demand differs by marketplace and format. A sensible range is more honest than false precision.
Questions, answered
BSR questions publishers ask.
Use the calculator as a first-pass signal, then verify the books behind the rank.
What is Amazon Best Sellers Rank (BSR)?+
BSR is Amazon's current sales-rank signal inside a store and product category. A lower number generally means stronger recent sales.
Does the same BSR mean the same sales in every format?+
No. Kindle, paperback, hardcover, and Audible each behave differently. The calculator applies a separate estimation curve to every format.
Why does BSR change so often?+
Amazon recalculates BSR frequently and gives recent sales extra weight, so a promotion or a quiet sales period can move the rank quickly.
Are these sales estimates exact?+
No. Amazon does not publish a BSR-to-sales formula. Treat the estimate as a practical range for comparison, not a guaranteed unit count.
Move from estimate to evidence
Start free Want to see WHICH books are ranking?
AuthorScout shows the recent, low-review books behind the sales signals.