Book Page Estimator
Enter a word count to estimate printed book pages by format, trim size and font size, compare manuscript pages, and get the KDP paperback spine width.
How many pages in a novel depends on its word count and layout: at this tool's default 275 words per page (6×9 in trade paperback), an 80,000-word novel is about 291 pages, a 50,000-word novel about 182 and a 100,000-word novel about 364.
Use the Book Page Estimator
Book Details
Pick a trim size to set words per page from the page area and font size.
Calibrate from a typeset sample
Count the words and full text pages in a representative chapter using your intended trim, font and margins.
Editable layout assumption
Front/back matter
Printer requirements vary. KDP rounds manuscript page count up to an even number when necessary.
Enter a word count and click Estimate Pages
Estimated pages — Paperback
Words entered
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Page count across all formats
| Format | Words/page | Pages | Range |
|---|
Planning estimates only. Reflowable ebook “pages” change with device, font and reader settings; use the ebook figure as screen-equivalent context.
Paperback spine width (KDP formula)
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What this estimate can and cannot tell you
Final print pagination comes from the laid-out manuscript. Trim size, margins and page count also affect production constraints. Reflowable EPUB readers may paginate dynamically, so an ebook screen count is not fixed.
Sources: Amazon KDP paperback submission guidelines, KDP paperback cover (spine) guide and W3C EPUB Reading Systems 3.4. Inputs stay in your browser and are not uploaded.
Quick answer
How many pages in a novel depends on its word count and layout: at this tool's default 275 words per page (6×9 in trade paperback), an 80,000-word novel is about 291 pages, a 50,000-word novel about 182 and a 100,000-word novel about 364.
Examples
| Words | Paperback (275/page) | Mass market (240/page) |
|---|---|---|
| 50,000 | 182 pages | 209 pages |
| 80,000 | 291 pages | 334 pages |
| 90,000 | 328 pages | 375 pages |
| 100,000 | 364 pages | 417 pages |
Enter your word count, or calibrate from a typeset sample, for your page count.
Summary
The Book Page Estimator converts manuscript words into a transparent planning estimate. Its assumptions remain editable, and a sample-calibration mode lets authors replace generic presets with measured density from their intended layout.
How it works
- Enter your total word count in the input field.
- Choose a planning preset or enter your own words-per-page value.
- Optionally pick a trim size and body font size: words per page scale with the text-block area (0.625 in side and 0.75 in top/bottom margins) and with the square of 11 pt ÷ font size, anchored at 275 words for a 6 × 9 in page at 11 pt.
- For a better estimate, calibrate words per page from a representative typeset sample.
- Optionally include front/back matter and round up for print production.
- Review the formula, sensitivity range, and comparison assumptions, including manuscript pages at about 250 words (double-spaced) and 500 words (single-spaced) per page.
- For paperbacks, the spine width uses KDP's published paper factors: 0.002252 in per page on white paper, 0.0025 in on cream and 0.002347 in for premium color.
Use cases
- Estimate printed page count before submitting a manuscript to a publisher.
- Plan your book layout and decide on trim size for self-publishing.
- Compare rough planning assumptions without treating them as final pagination.
- Calibrate an estimate from a representative chapter exported from the intended layout.
- Set realistic writing milestones by mapping word-count goals to page targets.
- Estimate printing costs that depend on final page count.