This free Amazon KDP Sales and Royalty Estimator helps self-publishers quickly estimate possible daily sales, monthly sales, and rough royalties based on a book’s Best Seller Rank, format, and price.
Use it as a quick planning tool — not a guaranteed income calculator. Amazon rankings change constantly, royalties depend on marketplace rules, and paperback print costs vary by trim size, page count, ink type, and marketplace.
For official royalty rules, Amazon KDP explains that eBook royalties may be 35% or 70% depending on pricing and eligibility, while paperback royalties subtract printing costs from the royalty calculation. Read Amazon KDP’s official royalty overview.
Amazon KDP Sales & Royalty Estimator
This estimator uses a rough BSR-to-sales curve. It is useful for quick planning, but it is not official Amazon data.
How This KDP Calculator Works
Enter the book’s Amazon Best Seller Rank, choose the format, and add the price if you want a rough royalty estimate. The calculator then estimates daily sales, monthly sales, and possible royalties.
The sales estimate is not official Amazon data. Amazon does not publish a public exact formula that converts BSR into daily sales. So this tool should be used as a planning estimate, not a guarantee.
Important KDP Royalty Notes
- Kindle eBooks: Amazon KDP may pay 35% or 70% royalties depending on price, territory, delivery cost, and eligibility.
- Paperbacks: KDP paperback royalties generally use the list price, royalty rate, and printing cost. Printing costs vary by book specs and marketplace.
- Print cost: The calculator uses a sample $2.15 print cost, but your real cost may be higher or lower.
Amazon also provides an official paperback and hardcover royalty calculator that can help estimate real print costs by marketplace. Use Amazon KDP’s official royalty calculator.
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