All tools

Sentence Length Distribution Analyzer

Text

Get a histogram of sentence lengths plus mean, median, and standard deviation, a signal distinct from readability grade scores

Paste a paragraph and see how its sentence lengths are actually distributed: a histogram in 5-word buckets, plus the mean, median, standard deviation, and a coefficient-of-variation-based consistency label. This is a different signal from the Flesch or Gunning Fog scores the Readability Score Calculator already reports. Two paragraphs can land on the same reading grade while one alternates short punchy sentences with long winding ones and the other stays uniform throughout, and that rhythm matters for how a piece actually reads out loud or scans on a page. Sentence splitting uses terminal-punctuation matching rather than a full grammar parser, so an abbreviation like "Dr." can occasionally get counted as its own sentence boundary.

sentencesgrammarwritingstatisticsdistribution

How to use Sentence Length Distribution Analyzer

  • 1.Paste a paragraph of writing to see its sentence lengths broken into a histogram, in words per sentence.
  • 2.Check the coefficient of variation and consistency label to see whether the piece varies its sentence rhythm or stays uniform.
  • 3.Compare two drafts of the same paragraph to confirm an edit actually varied the sentence lengths, not just shortened them uniformly.

Frequently asked questions

How is this different from the Readability Score Calculator?
Readability Score Calculator reports Flesch and Gunning Fog grade-level scores computed from averages. This tool reports the actual distribution and variance of sentence lengths, which two texts with the same average can still differ on a lot.
Why do some abbreviations split into extra sentences?
Sentence boundaries are detected from terminal punctuation (., !, ?), not a full grammar parser, so an abbreviation like "Dr." or "e.g." can occasionally be miscounted as ending a sentence.
What does the coefficient of variation mean here?
It's the standard deviation of sentence lengths divided by the mean. Below 0.3 is labeled consistent, 0.3 to 0.6 is moderate variation, and above 0.6 is highly variable.
Is my text sent to a server?
In the browser tool, no, analysis runs entirely client-side using pattern matching, nothing is uploaded anywhere.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/sentence-length-distribution \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"text":"The cat sat on the mat. It was a sunny day, and the dog ran across the yard to play."}'

Get an API key from your dashboard · Full API docs →