Sentence Counter
Count sentences in your text instantly.
How to Use the Sentence Counter
Paste or type text into the box above. The sentence count updates instantly alongside word count, paragraph count, and reading time.
How Sentences Are Counted
The counter detects sentence boundaries using terminal punctuation: periods (.), exclamation marks (!), and question marks (?). This method catches the vast majority of standard English sentences accurately.
Note: abbreviations (e.g. "Dr.", "U.S.A.") may occasionally add to the count since they contain periods. For most prose this effect is negligible.
Why Sentence Count Matters
Readability
Shorter sentences are easier to read. The Hemingway writing guideline suggests keeping most sentences under 20 words. Long sentences are harder to follow and more likely to lose the reader.
Sentence Length Variation
Divide your word count by your sentence count to get average sentence length. Aim for variety: a mix of short punchy sentences and longer explanatory ones keeps writing engaging.
Academic Structure
Academic paragraphs typically contain 5–8 sentences. Knowing your sentence count helps ensure each paragraph is well-developed but not bloated.
Privacy
Everything runs in your browser. No text is sent to any server.