BSR Sales
Turn a BSR into estimated daily and monthly sales, using real sales curves where they exist and marking estimated markets Beta.
Open calculatorFree publishing calculators
Turn rank and pricing into decisions you can use.
Estimate marketplace sales, explore Audible demand, and calculate KDP and ACX royalties with a small guest allowance before you sign in.
Guest allowance · 5 calculations per dayCreate a free account for 10 calculations per day. Pro members have unlimited calculator access.Sign in
Audiobook Sales
Turn an Audible Books & Originals rank into a whole-copy listening-sales range.
Open calculatorKDP Royalties
Estimate paperback, hardcover, and Kindle earnings from price, pages, and sales.
Open calculatorACX Royalties
Calculate current or legacy ACX audiobook royalties from statement values and agreement terms.
Open calculatorTransparent estimates
Sales are shown as ranges because Amazon does not publish a BSR-to-sales formula.
Whole-copy results
Sales estimates use the same whole-copy rounding as the current AuthorScout extension.
Plan-based access
Visitors receive 5 calculations per day, free accounts receive 10 per day, and Pro members have unlimited access.
Stop guessing.
Start with a book already proving demand.
Open AuthorScout free. No card required.