---
title: "KENP calculator"
description: "Estimate Kindle Unlimited page-read earnings from a book's KENP length, readers, read-through and the per-page rate in your own KDP report."
url: "https://www.superebook.ai/tools/kenp-calculator"
---

# KENP calculator

Free KENP calculator. Estimate what Kindle Unlimited page reads pay from your book's length, readers and read-through, at the per-page rate in your KDP report.

KENP calculator. What page reads pay. Estimate what Kindle Unlimited page reads earn from your book's length, how many readers open it and how far they get. You supply the per-page rate from your own KDP report, so it's never out of date.

The calculator runs on the page, in the browser: [open the KENP calculator](https://www.superebook.ai/tools/kenp-calculator.md). No sign-in is needed.

## Questions

**What is KENP?** Kindle Edition Normalized Pages: Amazon's measure of a Kindle book's length, used to count the pages a Kindle Unlimited subscriber reads. It isn't your print page count, and it doesn't change with the reader's font size.

**How does Kindle Unlimited pay authors?** For books enrolled in KDP Select, Amazon sets a global fund each month and pays authors a share of it by the pages subscribers read. So the rate per page isn't fixed: it depends on the fund and on how many pages were read in total.

**What rate should I enter?** The one in your own KDP reports: it's the most accurate figure for your books, and it changes every month. The starting rate in the calculator is an example, not Amazon's figure.

**Where do I find my book's KENP length?** KDP works it out from your book and shows it with the book in your account; check KDP's help pages if you can't find it. It's usually a little different from a print page count.

**Does this apply to books outside KDP Select?** No. Page-read payments are for books enrolled in KDP Select. Books sold elsewhere, or not enrolled, earn from sales royalties instead: the Kindle royalty calculator covers those.

**Is this an official Amazon tool?** No. It's a free estimator: you give it the figures, and it does the arithmetic. Your KDP reports are the source of truth for what you're paid.

## Other free tools

- [Kindle royalty calculator](https://www.superebook.ai/tools/kindle-royalty-calculator.md)
- [Word count to pages](https://www.superebook.ai/tools/word-count-to-pages-converter.md)
- [Self-publishing cost calculator](https://www.superebook.ai/tools/self-publishing-cost-calculator.md)