What is the Sentence Counter?
Count sentences and get average sentence length. Clean up, transform and analyze text in one click. All text tools run entirely in your browser, so your writing never leaves your device.
How to use the Sentence Counter
- Paste or type your your text into the box (a sample is pre-filled so you can see how it works).
- Results update automatically as you type; you can also press Calculate.
- Read the output: sentences, average words per sentence, words.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With the sample input, the Sentence Counter returns sentences: 3; average words per sentence: 12.7; words: 38.
Tips for better results
- Use Ctrl/Cmd + A then paste to replace the sample text quickly.
- Chain tools: remove extra spaces, then change case, then count words.
- Use the Download button to save long results as a .txt file.
Frequently asked questions
What does the Sentence Counter do?
Count sentences and get average sentence length.
How is it calculated?
The Sentence Counter uses this method: Sentences end with . ! ? or ….
Can you show an example?
With the sample input, the Sentence Counter returns sentences: 3; average words per sentence: 12.7; words: 38.
Is the Sentence Counter accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Sentence Counter is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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