Free Amazon KDP Royalty & Profit Calculator
Calculate real-time royalties, printing costs, and net author earnings across Kindle eBook, paperback, hardcover, and audiobook formats.
How to use this kdp royalty calculator
- Select your book format: Kindle eBook, Paperback, Hardcover, or Audiobook.
- Enter your planned list price and total page count for print formats.
- Choose your ink type (black & white vs standard/premium color) and marketplace.
- Review your net royalty per copy, profit margin percentage, and estimated earnings at 100, 500, and 1,000 unit sales.
How Amazon KDP Royalties Work in 2026
Amazon Kindle Direct Publishing (KDP) offers two different royalty structures depending on whether you publish a digital eBook or a physical print edition. For eBooks priced between $2.99 and $9.99, authors earn a 70% royalty minus a nominal digital delivery fee based on file size ($0.15 per megabyte in the US). For eBooks priced below $2.99 or above $9.99, the royalty drops to 35% with no delivery fee. For paperbacks and hardcovers, Amazon pays 60% of the list price minus fixed and variable printing costs.
Paperback & Hardcover Print Cost Formulas
Print-on-demand printing costs consist of a fixed charge plus a per-page cost. For regular black ink paperbacks (110–828 pages) sold on Amazon.com, the base print cost is $0.85 fixed + $0.012 per page. For hardcovers, the base cost is $1.40 fixed + $0.018 per page. Premium color printing incurs higher per-page rates. To ensure you never lose money on a physical copy, Amazon enforces a minimum list price equal to Print Cost ÷ 60%.
Maximizing Your Author Royalty Profit Margins
To maximize profitability, most successful nonfiction authors price paperbacks between $13.99 and $17.99, yielding $4.50 to $7.00 per unit in net profit. For eBooks, $4.99 to $9.99 remains the sweet spot for maximizing both total conversion volume and the full 70% royalty rate. Pairing your print editions with an eBook creates price anchoring that drives readers to purchase either format.
Frequently asked questions about kdp royalty calculator
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