Question 1

How does Amazon KDP calculate paperback royalty?

Accepted Answer

Royalty = (List Price × Royalty Rate) − Printing Cost. The rate is 60% on Amazon retail and 40% on Expanded Distribution. Printing cost depends on page count, paper type, and marketplace.

Question 2

What if the royalty comes out negative?

Accepted Answer

KDP won't let you publish below the minimum viable list price. The calculator surfaces that minimum so you can set a profitable retail price.

Question 3

Does this work for hardcover?

Accepted Answer

Hardcover printing costs are 50–70% higher than paperback at the same page count. This calculator focuses on paperback — for hardcover, use the same flow inside KDP for the live number.

Question 4

Why does Standard Color require 72+ pages?

Accepted Answer

Amazon's Standard Color print process needs a minimum spine width. For fewer pages with color, choose Premium Color (supports 24 +).

Question 5

How accurate are these numbers?

Accepted Answer

Formulas come straight from KDP's 2025 published rate tables. Royalty rate (60% / 40%) has been stable for years; marketplace rates change rarely.

KDP Royalty Calculator

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