Average Kindle Book Length by Genre
The median page length of Amazon Kindle bestsellers, genre by genre — from short children's books to long fiction. · Updated May 12, 2026
Median length
136 pages
across all genres
Typical range
92–229 pages
middle 50% of titles
Longest genre
Sci-Fi & Fantasy
~353 pages median
Shortest genre
Children's
~55 pages median
Figures cover the Amazon bestsellers we track — titles that chart in their category, not every book ever published.
Average Kindle book length by genre
Median page count of charting Kindle titles in each top-level Amazon genre, longest to shortest. The bar shows the median; the range column is the typical 25th-to-75th-percentile spread. Length is a genre signal as much as a craft choice — readers expect a romance to run long and a children's book to run short.
| Genre | Median length | Typical range | Titles |
|---|---|---|---|
| Sci-Fi & Fantasy | 353 pages | 245–501 | |
| Mystery & Thriller | 321 pages | 256–412 | |
| Romance | 302 pages | 176–399 | |
| Literature & Fiction | 251 pages | 125–364 | |
| Test Preparation | 226 pages | 127–404 | |
| Teen & Young Adult | 200 pages | 121–316 | |
| LGBTQ+ | 190 pages | 108–296 | |
| Education & Teaching | 180 pages | 106–314 | |
| Computers & Technology | 174 pages | 111–272 | |
| Law | 174 pages | 102–292 | |
| Politics & Social Sciences | 173 pages | 108–274 | |
| Christian Books & Bibles | 171 pages | 93–336 | |
| History | 170 pages | 111–291 | |
| Medical | 167 pages | 99–287 | |
| Religion & Spirituality | 163 pages | 100–285 | |
| Engineering & Transportation | 160 pages | 98–261 | |
| Science & Math | 160 pages | 94–260 | |
| Biographies & Memoirs | 158 pages | 95–263 | |
| Foreign Languages | 158 pages | 80–287 | |
| Business & Money | 157 pages | 101–244 | |
| Sports & Outdoors | 155 pages | 92–253 | |
| Health, Fitness & Dieting | 148 pages | 96–218 | |
| Cookbooks, Food & Wine | 148 pages | 99–226 | |
| Parenting & Relationships | 147 pages | 99–227 | |
| Travel | 145 pages | 101–208 | |
| Self-Help | 144 pages | 102–208 | |
| Reference | 141 pages | 86–241 | |
| Humor & Entertainment | 138 pages | 87–257 | |
| Crafts, Hobbies & Home | 117 pages | 72–180 | |
| Arts & Photography | 115 pages | 64–183 | |
| Children's | 55 pages | 32–116 |
What the average book length actually is
Across the Amazon Kindle bestsellers we track, the median title runs about 136 pages — but that one number hides a huge spread. Genre is the biggest driver of length: children's and low-content books run short by design, while romance and literary fiction run long to satisfy reader expectations. The "average book" is close to a myth; the average book in your genre is the number that actually helps you plan a manuscript.
Why length varies so much by genre
Reader expectations set length. Romance readers want a full emotional arc and often binge a series, so books run long. Children's books, journals, and other low-content titles are short by design. Non-fiction how-to, reference, and self-help land in the middle. Writing well outside your genre's norm sends the wrong signal: a 60-page “novel” or a 400-page picture book both look off to readers and to Amazon's also-bought engine, which clusters titles partly by shape and category.
How long should your book be?
Find your genre in the table and aim for its typical range — the 25th-to-75th-percentile band. Landing inside that range is the safe default: long enough to meet expectations, short enough to keep print costs and KENP page-read economics sane. Going well above or below it should be a deliberate craft choice, not an accident. Remember these are page counts of books that already chart, so they describe the shape of titles that are working, not a rule you must obey.
Methodology
Population. Active, likely-KDP Kindle titles (our self-published heuristic) that currently chart in at least one Amazon category. Page count is parsed from each title's print-length field; entries over 5,000 pages are dropped as data errors or box sets.
Genre. Each title is grouped by the top-level Amazon category it charts in (Romance, Children's, Business & Money, and so on). A title that charts in more than one genre is counted in each. Only genres with more than 200 tracked titles are shown.
Median, not mean. We report the median page count because length distributions have long tails — a few box sets or very short titles would skew an average. The range column is the 25th-to-75th-percentile spread, i.e. where the middle half of titles in that genre sit.
Pages, not words. Figures are page counts as Amazon reports them, not word counts. A rough conversion is ~250–300 words per page, but it varies with trim size, font, and formatting.
Average Book Length FAQ
What is the average book length in pages?
What is the average book length by genre?
How long is the average novel?
How many pages should my book be?
Where does this book-length data come from?
Related KDP stats
How Much Do Self-Published Authors Make?
KDP author earnings milestones, the $100K+ author count, and what Amazon does and doesn't disclose about the distribution.
How Much Does Kindle Unlimited Pay Authors?
KU catalog growth, cumulative payouts, pricing history, and how page-read royalties stack up against direct sales.
KDP Royalty Rates Explained: 35% vs 70%
The full ebook and print royalty timeline, price-band rules, and the June 2025 print rate cut.
Current KENP Rate: KDP Per-Page Payout
The monthly KENPC per-page rate, how it's derived from the Global Fund, and its full history.
KDP Select Global Fund: Monthly Payouts & History
Every month of the Global Fund since 2014, the All-Stars Bonus pool, and annual derived totals.
Average Kindle Book Price by Format
What ebooks, paperbacks, and hardcovers cost on Amazon, plus where to price your own book.
How Many Books Are on Amazon?
The Kindle Store catalog over time, from 88K ebooks at launch to an estimated 12 million today.
Which Countries Is Amazon KDP Available In?
The 13 Kindle marketplaces, the 180+ countries you can publish from, and how you get paid.