In Each Genre, How Many Words Is The Average Book?

Quick cheat-sheet I keep in my head: picture books = about 300–1,000 words; early readers = 1,000–5,000 words; middle grade = roughly 25,000–50,000; YA = around 50,000–80,000. For adults, commercial and literary fiction generally averages 70,000–110,000 words; thrillers, mysteries, and romance commonly fall in the 80,000–100,000 sweet spot. Fantasy and science fiction are more flexible — urban fantasy and many traditional sci-fi titles land between 80,000–120,000, while epic fantasy or sprawling space operas often range from 120,000 up to 180,000 or more. Novellas are 20,000–40,000; short story collections and graphic novels vary by format, with graphic novels usually containing far fewer words but more visual storytelling.

Nonfiction sits all over the place: memoirs and narrative nonfiction often trend 60,000–100,000, practical guides and business books can be 40,000–80,000. These aren’t strict laws — some beloved books like 'The Hobbit' and 'Dune' defy simple categorization — but these figures give a good sense of pacing and reading time. I use this map when I’m choosing a reading weekend or planning my next draft, and it keeps my expectations in-check while still leaving room for delightful outliers.

My Bookshelf is messy but reliable, and over the years I’ve scribbled down word-counts for everything I read — it’s my little librarian’s cheat-sheet. For most adult literary fiction novels I’d say the average hovers around 80,000 to 110,000 words; think of classics like 'Pride and Prejudice' sitting near the upper middle of that range. Contemporary thrillers and general commercial fiction often live between 80,000 and 100,000 words, while big psychological thrillers and some doorstopper crime novels can push 120,000 to 150,000 — 'gone girl' is a reminder that popular books sometimes break the mold.

Fantasy splits into personalities: epic fantasy usually averages 120,000 to 180,000 words (debuts often aim for 100,000–140,000 but series can balloon past 200,000), whereas urban fantasy and fantasy with modern pacing trend 80,000 to 110,000. Science fiction generally sits around 90,000 to 130,000 for mainstream works, with space opera leaning toward the higher end. YA novels prefer tighter storytelling — typically 50,000 to 80,000 words — and middle-grade tends to be 25,000 to 50,000. Picture books are tiny in comparison, often 300 to 1,000 words.

Nonfiction varies wildly: memoirs and popular history/pop-science books often fall between 60,000 and 100,000 words; practical self-help and business books can be shorter, 40,000 to 80,000. novellas live in the 20,000 to 40,000 area, and short story collections depend on story lengths but commonly total 30,000 to 70,000 words. Graphic novels are best measured in pages rather than words, but most single-volume graphic novels contain far fewer words than prose novels. I keep these ranges in mind whether I’m reading, recommending, or drafting my own projects — they’re guidelines more than rules, but handy ones nonetheless.