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KENP Page-Read Royalty Estimator
Enter your KENPC page count, the borrows you expect this month, an average read-through, and the current KENP per-page rate, and get an estimated Kindle Unlimited payout with every assumption shown. The rate is a value you set from your own KDP dashboard, never a live or official number. Everything runs in your browser.
Your book’s Kindle Edition Normalized Page Count. Find it on the KDP Bookshelf under Promote and Advertise, listed as KENPC v3.0.
How many Kindle Unlimited readers you expect to open the book this month.
The share of the book the average borrower reads. Most borrowers do not finish, so this is a labelled assumption, not a claim about your specific book. Adjust it to your own KDP data.
Amazon publishes the KENP per-page rate every month, as the KDP Select Global Fund divided by all pages read. It is not fixed and it drifts. The default 0.00450 is a representative recent US value shown as an example as of August 2026. Check your KDP dashboard for this month’s actual rate and set it here. This tool never fetches the rate and never treats it as official.
estimated Kindle Unlimited page-read royalties this month.
The KENP rate is a number you set from Amazon’s monthly KDP figure, not a scraped or official number.
Pages read is borrows times KENPC times read-through. Payout is pages read times the rate you entered. That is the whole model.
| x | Payout |
|---|---|
| 50% | $304 |
| 60% | $365 |
| 70% | $425 (you are here) |
| 80% | $486 |
| 90% | $547 |
| 100% | $608 |
| Read-through | Pages read | Payout |
|---|---|---|
| 50% | 67,500 | $304 |
| 70% (yours) | 94,500 | $425 |
| 90% | 121,500 | $547 |
Read-through is the single input you know the least, so the payout moves with it. These three rows show how far the estimate swings.
The copied summary and the PNG both carry the note that the rate is a value you enter, not an official figure, so the estimate is never mistaken for a promise.
The one honest thing about the KENP rate
Amazon does not pay Kindle Unlimited authors per borrow. It pays per page read, and the rate for one page is set fresh every month. Amazon takes the KDP Select Global Fund for the month and divides it by every page every KU reader turned, so the number moves with how much other authors were read. It has hovered near four-tenths of a cent to half a cent per page for years, but it is never a fixed figure.
That is why this tool asks you to type the rate. The default is a plausible recent example, dated so you know how old it is. The real number for this month is on your KDP dashboard the day the payment report lands. We never fetch it, and we never present it as official. You set it, and the estimate is only as current as the number you enter.
The math, in full
- Pages read is your borrows times your KENPC page count times the average read-through. At 300 borrows, 450 KENPC, and 70 percent, that is 94,500 pages.
- Payout is pages read times the KENP rate you entered. At 94,500 pages and $0.00450 a page, that is about $425.
- Read-through is the softest input. Nobody knows exactly how far the average borrower reads your book, so treat it as a dial, not a fact, and check the three-level table to see how much the answer swings.
Where to find your KENPC
KENPC is the Kindle Edition Normalized Page Count, Amazon’s own page measure for a KU title. Open your KDP Bookshelf, find the book, and look under Promote and Advertise, or on the book’s detail line, for the KENPC v3.0 figure. It is usually larger than your print page count because it counts normalized pages, not paper ones. Use that number here, not the print length.
Good to know
Questions about this tool
Where does the KENP rate come from?
From you. The rate moves every month, so this tool never fetches it. Copy it from your KDP dashboard. The value pre-filled here is an example dated August 2026, not an official figure.
Where do I find my book's KENPC?
On the KDP Bookshelf under Promote and Advertise, listed as KENPC v3.0. It is usually larger than your print page count.
How is the estimate calculated?
Pages read equals borrows times KENPC times read-through, and the payout is pages read times the rate you entered. Read-through is an assumption you set, since most borrowers do not finish the book.
How far can the estimate swing?
A three-level table shows the payout at lower and higher read-through, so you can see how much the answer depends on that one guess. The copied summary and the PNG both note that the rate is a value you entered.