Skip to content
BookFoundry
Free tool. No signup.

KDP Book Page Count Calculator

Enter your word count and trim size to see how many print pages your book will be, what Amazon KDP will charge to print it, and the paperback royalty you keep at any list price. Below the calculator is a full word-count-to-page reference table. Free, instant, no account.

Write a book for Amazon KDPSee pricing
700+
books generated
600+
writers on the platform
18
book languages
DOCX · EPUB · PDF
KDP-ready exports

Live platform totals, verified

words

Type a word count to estimate the print page count, KDP print cost, and paperback royalty. The table below shows common lengths.

Write a book ready for Amazon KDP
Book page count and KDP print cost by word count
Word count5 x 8 pages6 x 9 pagesKDP print costRoyalty at $9.99
20,0008067$2.30$3.69
30,000120100$2.30$3.69
40,000160134$2.46$3.54
50,000200167$2.85$3.14
60,000240200$3.25$2.74
70,000280234$3.66$2.34
80,000320267$4.05$1.94
100,000400334$4.86$1.14

Page counts assume an 11 pt font at single spacing. Print cost is the US black-ink paperback estimate, and royalty is 60 percent of the list price minus print cost. Use the calculator above for your own trim size, font, and price.

Page count for other word counts
20,000 words30,000 words40,000 words50,000 words60,000 words70,000 words80,000 words100,000 words

Why it works

Pages, cost, and royalty

Type a word count and instantly see the print page count, the Amazon KDP print cost, and the paperback royalty you keep at your chosen list price.

Every trim size and font

Switch between 5 x 8, 5.25 x 8, and 6 x 9 at 10, 11, or 12 point to see how the page count and print cost change before you format.

From word count to finished book

Once you know the right length, BookFoundry writes the whole book to that target and exports print-ready PDF, EPUB, and DOCX for Amazon KDP.

How it works

  1. 1

    Enter a word count

    Type the length you have or the length you are aiming for.

  2. 2

    Pick trim size and price

    Choose your trim size and font, then set a list price to see pages, print cost, and royalty.

  3. 3

    Write and publish it

    Start a book at that length and export print-ready files for Amazon KDP.

Write a book for Amazon KDP

How many pages is my book?

Page count depends on three things: your word count, the trim size you print at, and the font size. As a working rule, a 6 x 9 paperback in an 11 point font holds about 300 words per page, a 5 x 8 book holds closer to 250, and a larger font drops those numbers because fewer words fit on each line. Divide your word count by the words per page and you have a close estimate. A 50,000 word novel lands near 167 pages at 6 x 9 and around 200 pages at 5 x 8. The calculator above does this for any word count, trim, and font, so you never have to guess before you format.

How KDP print cost is calculated

Amazon KDP charges a printing cost for every paperback it prints, and that cost comes straight out of your royalty. For a black-ink paperback in the US, books up to 108 pages carry a flat printing charge, and from about 110 pages up the cost becomes a smaller fixed charge plus a per-page amount. Longer books cost more to print, which is why page count matters to your bottom line and not just to your reader. The calculator estimates this cost from your page count so you can see it before you set a price.

Paperback royalty on Amazon KDP

On the major marketplaces, Amazon KDP pays a 60 percent royalty on paperbacks, then subtracts the printing cost. So your royalty per sale is 60 percent of the list price minus what it costs to print the book. A 300 page 6 x 9 paperback listed at $12.99 earns roughly 60 percent of the list price, less a few dollars of print cost. If the number comes out negative, the list price is too low for the page count, and KDP will not let you publish below its minimum. Use the calculator to find a price that pays a healthy royalty.

Choosing a trim size for your book

Trim size is the width and height of the printed book. 5 x 8 and 5.25 x 8 are common for novels and memoirs because they feel like a traditional paperback and fit comfortably in the hand. 6 x 9 is the standard for non-fiction, workbooks, and longer novels because it fits more words per page, which lowers the page count and the print cost for the same manuscript. There is no single right answer, so compare the page count and cost for each trim in the calculator, then write your book to match with BookFoundry and export a print-ready PDF for Amazon KDP.

Frequently asked questions

About 167 pages in a 6 x 9 paperback at 11 point font, or roughly 200 pages at 5 x 8. Larger fonts and looser line spacing push the page count higher. Enter any word count above to see the exact estimate for your trim size.
For a US black-ink paperback, Amazon KDP charges a flat printing cost up to about 108 pages, then a smaller fixed cost plus a per-page charge from roughly 110 pages up. The calculator estimates this from your page count so you can see it before setting a price.
On most marketplaces Amazon KDP pays 60 percent of the list price and then subtracts the printing cost. The calculator shows your royalty per sale at any list price so you can price the book for a positive return.
5 x 8 and 5.25 x 8 suit novels and memoirs, while 6 x 9 fits more words per page and is standard for non-fiction and longer books. A larger trim lowers the page count and print cost for the same manuscript. Compare them in the calculator above.
Yes. The calculator and the full reference table are free with no account. If you want to write the book, a free BookFoundry account lets you start a book and preview it before anything is charged.

More from BookFoundry

AI KDP Book Generator: Publish & Earn on Amazon

Turn your expertise into a book that sells.

Learn more

Book Formatter & Manuscript Workshop

Already written it? Bring it in.

Learn more

Children's Book Word Count Calculator

Free tool. No signup.

Learn more

Ready when you are

No setup, no learning curve. Start in your browser and hold a finished book today.

Write a book for Amazon KDP
18 languages DOCX + EPUB + PDF Free to start