Readability Score
Calculate Flesch Reading Ease from word, sentence, and estimated syllable counts.
How to use
- Enter the prose to evaluate and run the score.
Capabilities and scope
It uses the traditional English formula that subtracts penalties for words per sentence and syllables per word from 206.835.
How it works
The equation is 206.835 − 1.015×(words/sentences) − 84.6×(syllables/words), displayed to one decimal place.
Example
Short simple English prose generally scores higher than long sentences with complex words.
Useful for
- Roughly compare readability among English drafts
Before you use it
- The syllable estimator is itself an English spelling heuristic and Flesch Reading Ease is English-oriented, so scores for Korean or Japanese are not valid interpretations.
Frequently asked questions
Does a high score mean the writing is objectively better?
No. It is a reference for structural ease, not factual accuracy, quality, or audience suitability.