How many chapters should a novel have?
There is no correct number of chapters for a novel. Anyone who tells you a book needs exactly 24, or 40, or 12 is selling you a formula instead of a craft principle. What actually determines chapter count is chapter length and pacing, not a headcount you're trying to hit.
That said, "it depends" isn't a useful answer on its own. Here's what published fiction actually looks like, broken down by genre and length, so you have a real range to calibrate against instead of a guess.
Typical chapter counts by genre
Commercial fiction and genre thrillers in the 80,000 to 100,000 word range tend to run 20 to 30 chapters, each landing somewhere between 2,000 and 4,000 words. That range is what most readers have been trained on by decades of paperback thrillers: short enough to read in one sitting on a train, long enough to develop a full scene.
Literary fiction runs longer per chapter and fewer in total. A literary novel of similar overall length might use 12 to 20 chapters, some running past 5,000 words, because the prose is doing more per page and a chapter break marks a shift in idea rather than a cliffhanger.
Fast-paced thrillers and YA fiction go the other direction: 40 or more chapters, some just a page or two, built around cliffhangers and constant forward motion. James Patterson's chapters famously run two or three pages. That's a deliberate pacing choice, not a shortcut.
Epic fantasy breaks the wordcount assumptions entirely. A 150,000 word fantasy novel with 35 to 45 chapters at 3,000 to 4,000 words apiece isn't unusual, and multi-POV books often size a chapter to a single viewpoint scene, whatever length that scene needs.
Genre Chapters Chapter length
Commercial / thriller 20-30 2,000-4,000 words
Literary fiction 12-20 3,000-5,000+ words
YA / fast-paced thriller 40+ 1,000-2,500 words
Epic fantasy 35-45 3,000-4,000 wordsChapter count follows chapter length, not the other way around
Here's the actual mechanism: total word count divided by average chapter length gives you chapter count. You don't choose 28 chapters and pad each one to fit. You write chapters that each do one job, at whatever length that job needs, and the total falls out the other end.
That is why asking how many chapters your novel should have is the wrong question when it is asked before you have drafted anything. Ask it after a first draft exists, when you have real material to look at. Before that point you are guessing at a number with nothing behind it.
The genre ranges above are useful for calibration, not for planning against in advance. If your thriller draft is running 45 chapters averaging 1,500 words, that is not automatically wrong, but it is worth checking whether some of those chapters are actually half-scenes that should be merged.
When a chapter is too long
A chapter is too long when it tries to do more than one job. If it opens one scene, resolves an unrelated conflict, and ends on a setup for a third, you probably have two or three chapters wearing a single label. The reader loses the sense of a natural stopping point, and that stopping point is most of what a chapter break exists to provide.
Length alone is not the problem. A 6,000 word chapter that stays inside one scene and one point of view can work fine, provided it never drifts past a single dramatic question. What actually breaks a chapter is scope creep: it keeps accumulating content because you did not want to stop and start a new heading, not because the material demanded the space.
When a chapter is too short
A chapter is too short when it does not earn its own break. One page that exists purely to deliver a plot beat, with no scene and no real character movement, usually belongs folded into the chapter before or after it. The exception is the deliberate short chapter used for pacing: a single gut-punch line or reveal that needs white space around it to land. That is a craft choice made on purpose, and it reads differently from a short chapter that exists only because you ran out of things to say.
Finding your number
The honest way to answer how many chapters your novel should have is to stop asking it in the abstract and start blocking out the actual story. List the scenes your plot requires, group them where they share a location or point of view, and see what falls out. In Chaptered's outline view, you can lay out that scene-and-chapter structure before you write a full draft, watching a real chapter count take shape as you break the story down instead of guessing at a target and writing toward it. The number you land on will be the right one, because it will be built from what the story actually needs rather than a rule you found on a forum.