Free interactive tool
Readability Checker
Paste your writing and watch the Flesch reading ease score answer every edit.
Watch your sentences get easier to read
Type or paste your own draft. The readability score answers every edit as you make it.
The Flesch score is arithmetic on sentence length and word length — which means both are levers you control in every sentence you write.
- Split your longest sentence in two and watch the score move.
- Swap one three-syllable word for a plain one — how much did it matter?
- Push the score above 60, then decide what you actually prefer.
The Flesch reading ease formula scores text from sentence length and word length: 206.835 − 1.015 × (words per sentence) − 84.6 × (syllables per word). Higher is easier; 60–70 reads as plain English, while below 30 is academic-paper territory.
Because both inputs are levers you control, the score responds to every edit: split a long sentence or swap a three-syllable word for a plain one and watch it move. Nothing you type leaves your browser.
What is a good Flesch reading ease score?
60–70 for general audiences. News aims near 60, consumer instructions higher, academic writing often lands below 40.
Does a higher score mean better writing?
It means easier decoding, not better ideas. Aim for the lowest difficulty your content honestly allows.