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Book page count calculator
How many printed pages will your manuscript become? Convert your word count to a realistic KDP page count for any trim size — the number that drives your spine width, printing cost, and royalty.
Estimated page count
179–209
most likely ≈ 192 pages
Words per page
≈ 330
at these settings
KDP range
OK
paperbacks need 24–828 pages
Take your estimate (≈ 192 pages) to the spine width calculator for your cover, and the royalty calculator to see printing cost and profit per sale at this length.
Want the exact number, not an estimate?
publish.ai typesets your actual manuscript into a print-ready interior PDF — real page count, correct gutter margins, cover wrap built to match — plus a validated EPUB, listing copy, and launch graphics. One upload, minutes, from $29.99.
How the estimate works
Words-per-page depends almost entirely on three things: the trim size (how big the page is), the body font size, and the line spacing. Our baselines come from measuring typeset book interiors at each KDP trim size — around 330 words on a 6×9″ page at 11pt — and we scale from there for your settings, then add your front and back matter.
The honest caveat: two books with identical word counts can differ by 5–10% in pages depending on chapter count (each chapter break wastes part of a page), dialogue density (short lines leave white space), and hyphenation. That’s why we show a range. Treat the midpoint as your planning number and expect the final typeset PDF to land inside the range.
Words to pages — quick reference
Estimated total printed pages (including ~10 pages of front and back matter) at 11pt type with standard spacing. Every figure is a range because chapter breaks, dialogue density, and hyphenation move the count a few percent either way.
| Word count | 5″ × 8″ | 5.5″ × 8.5″ | 6″ × 9″ |
|---|---|---|---|
| 30,000 | 121–142 | 104–122 | 94–110 |
| 40,000 | 158–185 | 136–159 | 123–144 |
| 50,000 | 195–229 | 167–196 | 151–177 |
| 60,000 | 233–273 | 199–233 | 179–209 |
| 70,000 | 270–316 | 231–270 | 207–243 |
| 80,000 | 307–360 | 262–307 | 235–276 |
| 90,000 | 344–403 | 294–344 | 263–308 |
| 100,000 | 381–447 | 325–380 | 292–342 |
| 120,000 | 456–534 | 388–455 | 348–408 |
Typical manuscript lengths for context: novellas run 20–50k words, most genre novels 60–90k, epic fantasy and sagas 100–120k+, and prescriptive nonfiction 40–60k.
What your page count controls on KDP
Printing cost.Amazon charges a fixed cost plus roughly $0.012 per page (black ink, regular trim, Amazon.com) once you’re over 108 pages — and that comes straight out of your 60% royalty. An 80,000-word novel at 6×9 (~260 pages) costs about $1.10 less to print per copy than the same book at 5×8 (~350 pages), every single sale.
Spine width. Pages × paper thickness is your spine, and the spine sets your whole cover-file width. Compute pages first, spine second, cover last — in that order, with the spine calculator and cover calculator.
Margins.KDP’s minimum gutter steps up as the book gets thicker — at 151, 301, 501, and 701 pages. If your estimate straddles one of those thresholds, plan the bigger gutter; the interior calculator gives you the full setup.
Eligibility. Black-ink paperbacks must land between 24 and 828 pages, hardcovers between 76 and 550. Very long manuscripts sometimes need a larger trim (or a split into volumes) just to fit.
Common questions
How many pages is 50,000 words?＋
At 6×9″ with typical settings (11pt, 1.3 spacing), 50,000 words is roughly 150–165 printed pages plus front and back matter — call it 160–175 total. At 5×8″ the same manuscript runs about 200–215 body pages.
How many pages is 80,000 words?＋
About 240–265 pages at 6×9″ with typical settings, or 320–350 pages at 5×8″. That's a standard full-length novel — comfortably inside KDP's 24–828-page paperback range at any trim size.
How many words are on a printed book page?＋
A typeset 6×9″ page holds around 300–350 words at 11pt with normal spacing; a 5×8″ page holds around 230–270. Dense settings can push 6×9″ to ~390, and relaxed large-print-style settings can drop it below 250.
Why does my Word document show a different page count?＋
Word's default 8.5×11″ pages at 12pt hold 450–500 words — nearly two printed book pages each. Never use your .docx page count for spine or cost math; convert words to typeset pages first.
Does page count matter on KDP?＋
Yes, three ways: printing cost (about $0.012 per page over 110 pages, straight out of your royalty), spine width (0.00225″ per page — it determines your cover file), and eligibility (paperbacks must be 24–828 pages, hardcovers 75–550).
How can I reduce my printed page count?＋
A larger trim is the biggest lever: moving from 5×8″ to 6×9″ cuts pages by roughly a quarter. After that: 10.5–11pt type, 1.2–1.3 line spacing, starting chapters on the same page rather than a fresh recto, and trimming front matter.
Related tools: spine width calculator, royalty calculator, cover size calculator.