Readability Checker
Check how easy your writing is to read, with the Flesch Reading Ease score, grade levels from five formulas and a list of long sentences.
Result
Paste English text to score its readability.
How to use this tool
- Paste English text (a few sentences or more).
- Read the scores and shorten any long sentences listed.
How it works
Flesch Reading Ease = 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words). Grade-level formulas use similar measures, and syllables are estimated.
Example
A simple sentence
“The cat sat on the mat.” has 6 one-syllable words in 1 sentence, a very easy Flesch score of about 116 (shown as 100).
Privacy and limitations
- Everything runs in your browser; nothing you enter is uploaded or stored.
- Designed for English; syllable counts are estimates.
Frequently asked questions
What score should I aim for?
For general audiences, 60 or more on Flesch Reading Ease (about grade 8).
Do short sentences always help?
Usually, but clarity also depends on structure and familiar words.