How Sentence Counter Works
The tool splits your text wherever a period, exclamation point or question mark (or a run of them, like "?!") appears, discarding any empty fragments left over from spacing. Each remaining fragment is treated as one sentence. It then divides the total word count by the sentence count to give the average words per sentence.
How to Use This Tool
- Paste or type your text into the box.
- The result panel updates automatically with the sentence count.
- Check the average words-per-sentence figure to gauge readability.
- Use Clear to reset and analyze a new passage.
Example
The text "Rain fell all night. By morning, the streets were flooded! Did anyone see it coming?" has 3 sentences and 15 words total, for an average of 5 words per sentence.
Helpful Tips
- Shorter average sentence length generally makes text easier to read — many style guides aim for 15-20 words per sentence.
- Abbreviations like "e.g." or "Mr." can be miscounted as sentence breaks, so review the count if your text has many of them.
- Run a paragraph through this tool before publishing to spot runs of overly long sentences that might need splitting.
Frequently Asked Questions
How does the tool detect sentence boundaries?
It splits your text at every period, question mark or exclamation point, treating each resulting chunk of text as one sentence.
Does it handle multiple punctuation marks like "?!"?
Yes, a run of punctuation marks together is treated as a single boundary, so it won't create extra empty sentences.
Why might the count be slightly off for my text?
Abbreviations, decimal numbers, and ellipses can contain periods that don't actually end a sentence, which may inflate the count.
What is average words per sentence used for?
It's a common, simple readability signal — shorter averages tend to read more easily, while long averages can signal dense or run-on writing.
This tool runs entirely in your browser. Your input is not uploaded to any server.