Word counts by form, genre and audience
Length matters more than writers like to think. Publishers and agents screen submissions by word count, readers have expectations, and length decides how many characters and threads a story can carry. These ranges are typical, not rules, and they shift over time. Treat them as a map of where most successful books sit.
Forms of fiction
These short-fiction categories follow the Science Fiction and Fantasy Writers Association's Nebula Award rules, and are widely used across genres. Microfiction and epic are common labels rather than formal categories.
| Form | Length |
|---|---|
| Microfiction | under 100 words |
| Flash fiction | 100–1,000 words |
| Short story | 1,000–7,500 words |
| Novelette | 7,500–17,500 words |
| Novella | 17,500–40,000 words |
| Novel | 40,000–120,000 words |
| Epic | over 120,000 words |
Adult novels by genre
Commonly cited ranges for a debut novel:
| Genre | Typical range |
|---|---|
| Literary and upmarket fiction | 70,000–100,000 |
| Mystery | 70,000–90,000 |
| Thriller and suspense | 80,000–100,000 |
| Romance (single title) | 70,000–100,000 |
| Category romance | 50,000–75,000, set by the publisher's line |
| Horror | 70,000–90,000 |
| Historical fiction | 80,000–110,000 |
| Science fiction and fantasy | 90,000–120,000 |
| Epic fantasy | 100,000–150,000 for a debut; established authors often run longer |
Young readers
| Category | Typical range |
|---|---|
| Picture books | under 1,000 |
| Early readers and chapter books | 1,000–15,000 |
| Middle grade | 30,000–55,000, and up to about 75,000 for fantasy |
| Young adult | 50,000–90,000, and up to about 100,000 for fantasy |
When to worry
- Far over the range is the more common problem, and the more damaging one. Agents often reject long debuts on length alone, because long books cost more to print, and a debut is a risk.
- Far under the range may mean the story is thin, or is really a different form: a novella rather than a novel.
- Self-publishing is more flexible, but reader expectations still apply. A 40,000-word "epic fantasy" will disappoint its readers, and a 250,000-word romance will lose many.
Revising toward a length
- Too long: cut scenes that don't turn, merge characters, compress travel and transitions, and trim the line-level fat. Stephen King's formula is a useful target: second draft equals first draft minus ten percent.
- Too short: look for what's missing, not what can be padded. A subplot that deepens the theme, a sequel scene that lets a turning point land, a middle that needs another escalation.
Where this comes from
- The Science Fiction and Fantasy Writers Association: Nebula Award category rules.
- Commonly cited agent and publisher guidance, which varies. Always check the submission guidelines of the specific agent or publisher.
- Stephen King, On Writing (2000).