Sentence Counter
Paste any text to instantly count sentences and see your average sentence length.
Why count sentences?
A sentence counter online is useful for checking readability — very long average sentence length can make writing harder to follow, while very short sentences can feel choppy. Editors, students and content writers use a sentence counter word tool like this to keep their writing balanced.
How sentences are counted
This tool splits text on periods, question marks and exclamation marks, then ignores any empty fragments so abbreviations and stray punctuation don't inflate the count too heavily.
What's a good average sentence length?
Many readability guidelines use roughly 15–20 words per sentence as a useful starting point for clear, easy-to-read writing. The ideal length can vary depending on the audience and type of content.