Scoped SEO
Add to ChromeSentence Counter
Count the sentences in your text and see the average sentence length. Long sentences are the most common readability problem.
- 1Paste your text
- 2Read the numbers
- 3Edit and recheck
Readability
Top keywords
How to use it
- Paste your text.
- Read the sentence count and the average words per sentence.
- Shorten sentences that run past 25 words.
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This tool runs in your browser. Your files and text are never uploaded or stored.
Spot this in the extension
The Content tab of Scoped SEO flags this on any page you visit and links straight here to fix it.
Why sentence length matters
Long sentences are the quickest way to lose readers. Aim for an average of 15 to 20 words, and mix in short sentences for rhythm. Use the average shown above as a check, then read your longest sentences aloud.
Next
See the full picture with the Readability Checker, which turns sentence and word length into a reading level.
Common questions
What is a good average sentence length?
For web writing, 15 to 20 words on average reads comfortably. Mix short and long sentences.
How are sentences detected?
The tool splits text at periods, question marks and exclamation marks, and ignores common abbreviations and decimals.
Related tools
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Readability Checker
Flesch score and grade level for your text.
Character Counter
Count characters with and without spaces.
Reading Time Calculator
Estimate reading and speaking time for any text.
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