The average sentence length in English writing is usually 15–20 words. Shorter sentences are often easier to read, while longer sentences can add detail and complexity depending on the style of writing.
Average Sentence Length by Writing Type
Different types of writing use different sentence lengths.
| Writing Type | Average Sentence Length |
|---|---|
| Academic writing | 20–25 words |
| Blog writing | 12–18 words |
| Journalism | 15–20 words |
| Fiction | 10–20 words |
Writers often vary sentence length to improve readability and keep readers engaged.
Why Sentence Length Matters
Sentence length affects how easy text is to read and understand. Very long sentences can become confusing, while extremely short sentences may feel choppy.
Many readability guidelines recommend keeping most sentences between 15 and 20 words.
Check Your Sentence Length
You can quickly analyze sentence structure using tools like:
These tools help writers measure sentence length and improve readability.