Free calculators and estimators for Amazon KDP authors. No sign-up needed.
Calculate your Amazon KDP royalty for ebooks (35% and 70%) and paperbacks after printing cost.
Find your KDP paperback spine width in inches and millimeters from page count and paper type.
Calculate full wrap paperback cover dimensions for KDP: trim size, spine and bleed included.
Convert word count to book pages (and pages to words) for KDP paperbacks by trim size.
Estimate daily and monthly book sales from an Amazon Best Sellers Rank (BSR), with revenue estimate.