Sentence length visualizer
See the rhythm of your writing — monotone sentence lengths tire readers even when each sentence is fine.
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- Average
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- Median
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- Shortest
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- Longest
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- Std. deviation
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Paste text above to see your sentence-length rhythm.
Your text, annotated
The number before each sentence is its word count. Sentences over 28 words are tinted.
Findings
Why sentence rhythm matters
A page of technically correct sentences can still be exhausting to read if they're all the same length. Readers don't just process meaning — they process rhythm, and a flat rhythm asks for more effort than a varied one, even when no single sentence is hard on its own.
Before
"The team reviewed the proposal carefully. They found several issues with the budget. The timeline also seemed unrealistic given past project results. Everyone agreed the plan needed more work before moving forward."
Every sentence here runs about the same length. Read it aloud and you'll notice the pace never changes — it's the writing equivalent of a monotone voice.
After
"The team reviewed the proposal carefully, and quickly found several issues with the budget and a timeline that looked unrealistic given past results. It needed more work. Everyone agreed."
Same information, different rhythm. One longer sentence carries the detail, then two short ones land the verdict. The short sentences hit harder because they follow a longer one — length is relative to what came before it, not just to some ideal word count.
What to do with a flat chart
If your bar strip looks like a picket fence, don't panic — combine a couple of short sentences with "and," or split one long sentence in two, wherever it reads naturally. You're not aiming for a specific pattern. You're aiming for variation a reader can feel without noticing it.
What counts as long, in the wild
For a benchmark from writing that is legally required to be plain: we measured the sentence length of 984 SEC prospectuses. The summary and risk factors — the only sections Rule 421(d) obliges to use plain English — average 26.5 words per sentence, with the longest tenth running past 46. The unregulated Business and MD&A sections of the same documents average 24.5. The sections with the legal duty to be plain are the denser ones — see the Plain English Paradox study for the full breakdown by industry and the raw data.