Free Sentence Counter

A sentence counter analyzes your text and tells you how many sentences it contains — but more importantly, it reveals how those sentences are structured. Average sentence length, longest and shortest sentences, and length distribution all contribute to a picture of your writing’s rhythm and readability.

Sentence count matters differently than word count. Two 500-word paragraphs can have very different readability: one with 10 medium sentences, another with 25 short fragments or 5 dense run-ons. Sentence structure directly affects how easy your writing is to follow, and most writers don’t track it.

Our sentence counter goes beyond raw count. The length distribution chart shows you whether your writing is dominated by short punchy sentences, balanced mid-length sentences, or dense long constructions — giving you actionable data to improve readability.

Sentence-level analysis is most valuable for anyone focused on writing quality, not just quantity.

Most text tools tell you how many words you’ve written. Very few tell you how those words are organized into sentences. But sentence structure is what separates clear, engaging writing from text that’s technically correct but exhausting to read.

The sentence length distribution is the key differentiator. A wall of 30-word sentences reads like a legal contract. A string of 5-word sentences reads like a children’s book. Good prose mixes both — and now you can measure whether yours does.

Think of this tool as a writing rhythm analyzer. It won’t rewrite your text, but it gives you the structural feedback that word processors and word counters completely miss. Run it on your next draft before hitting publish.