Check how easy your text is to read with Flesch scores.
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How is the Flesch readability score calculated?
Flesch Reading Ease = 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words). Higher is easier; 60–70 is plain English, while the score runs from about 0 (very hard) to 100+ (very easy). Short sentences with common words score above 70; long, technical sentences score below 50. The Flesch–Kincaid grade level estimates the US school grade needed.
Understanding your result
Reading ease runs from about 0 (very hard) to 100+ (very easy). The grade level estimates the US school grade needed to understand the text.
Formula and method
Flesch Reading Ease = 206.835 − 1.015 × (words ÷ sentences) − 84.6 × (syllables ÷ words). Higher is easier; 60–70 is plain English.
Assumptions and limitations
Syllables are estimated with a heuristic, so scores are a close guide rather than an exact measurement.
Worked example
Short sentences with common words score above 70 (easy); long sentences with technical words score below 50.
How to use this tool
- Paste your text.
- Read the reading-ease score and grade level.
- Simplify long sentences and words to improve the score.
Common mistakes to avoid
- Pasting text without punctuation — sentence detection relies on full stops, question and exclamation marks.
About the Readability Score
Measure how easy your writing is to read. Paste your text to get the Flesch Reading Ease score, the Flesch–Kincaid grade level and supporting statistics.
Who should use this tool
Writers, marketers, teachers and students aiming for clear, accessible text.
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Frequently asked questions
What is a good score?
For general audiences, aim for a Reading Ease of 60–70, roughly an 8th–9th grade level.
Which formula is used?
The Flesch Reading Ease and the Flesch–Kincaid Grade Level formulas.