Free calculators for self-publishers

Plain calculators with the current rules written out, so you can see exactly where each number comes from.

• Ebook royalty calculator

  What one sale pays you on Kindle, Apple Books, Kobo, Google Play, Barnes & Noble and Draft2Digital.

• Print royalty and printing cost calculator

  KDP printing cost for any page count and trim, and what each paperback or hardcover sale earns.

• Kindle Unlimited or wide? Calculator

  Compare KDP Select page reads with selling on every store, using your own numbers.

• Public-domain finder

  Classics with many readers and few editions.