Sentence Counter
Analyze any text to get accurate counts of sentences, paragraphs, words, characters, and syllables. The tool uses smart abbreviation detection so "Mr.", "Dr.", and "U.S.A." don't trigger false sentence breaks. You also get average sentence length, longest and shortest sentences, and estimated reading time — useful for writers, students, content marketers, and anyone optimizing their writing for clarity.
Why Sentence Length Matters
Average sentence length is one of the strongest predictors of readability. Sentences of 15-20 words are easy for most adult readers. Longer sentences (25+ words) significantly reduce comprehension. Mixing short and long sentences (called "burstiness") is a hallmark of human writing — AI-generated text tends to have uniform sentence lengths. Use this tool alongside our Readability Score and AI Text Detector for a complete picture of your writing.
Frequently Asked Questions
Built by Derek Giordano · Part of Ultimate Design Tools