One very long, very dense sentence — watch the score.
Try this examplereadability checker
Verified with limitationsReadability Checker
Paste text to check sentence length, complex words, reading time, and an estimated reading-ease score.
Computes a Flesch-style reading-ease estimate from local sentence counts and spelling-based syllable estimates, alongside explicit sentence-length and word-complexity counts.
Enter your input
Paste text above to measure sentence length, complex words, and reading ease.
Live results
Copy ready
Local processing
Computes a Flesch-style reading-ease estimate from local sentence counts and spelling-based syllable estimates, alongside explicit sentence-length and word-complexity counts. Processing stays in this browser; Word Helper does not receive your input. Syllables and sentence boundaries are estimated, so the score is not an official grade level.
Results
Readability report
Use this often? Press Cmd+D on Mac or Ctrl+D on Windows to bookmark this tool.
The Readability Checker measures your text in your browser: words, sentences, average sentence length, reading and speaking time, sentences over 25 words, and words of three or more syllables. It combines these into an estimated reading-ease score. Syllables are estimated from spelling patterns, so the score is a guide — useful for comparing drafts, not an official grade level.
Example output
What the results look like
A sample result for The team liked the plan. We tested it for two weeks., grouped the way the tool groups them — so you know the format before running your own.
Report
11 words · 2 sentences · avg 5.5 words/sentence · 0 long sentences · reading ease: very easy (estimate)
Examples
Worked examples
Use these sample inputs to understand the result style before you search your own word or letters.
Short sentences, plain words — easy to read.
Try this exampleHow it works
How Word Helper calculates results
Words, sentences, and paragraphs are counted in your browser — nothing is uploaded.
Syllables per word are estimated from spelling patterns (the same logic as the Syllable Counter), which makes the reading-ease score an estimate.
Sentences over 25 words are listed so you can split them.
Reading time assumes about 200 words per minute; speaking time about 130.
Tips
When this tool is useful
- Compare drafts: a rising score after an edit usually means the text got easier to read.
- Split any sentence carrying two ideas; keep one idea per sentence for instructions.
- Replace three-syllable words with shorter ones where meaning allows — but never at the cost of precision.
Word Lab
Related Word Experiences
Accuracy and scope
Scores are estimates from spelling-based syllable counts and sentence lengths. Review results before using them in school, work, or publishing.
FAQ
Questions people ask
Is this an official readability grade?
No. The score is an estimate built on syllable and sentence-length approximations. It is consistent enough to compare your own drafts, but it is not an official grade-level measurement.
What counts as a long sentence?
This tool flags sentences over 25 words. That is a guide, not a rule — a well-structured 30-word sentence can be perfectly clear, but most drafts read better when very long sentences are split.
Is my text stored or sent anywhere?
No. All counting runs in your browser and your text never leaves your device.