Readability score
Measure a text’s readability (Flesch score) and the required grade level.
- Instant
- Free
- Private (processed locally)
- No sign-up
Is your text easy to read?
Paste a text and get its Flesch score (0 to 100), the required grade level and the statistics. Everything recomputes live as you write.
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Paste the text
A paragraph or an article.
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Read the score
Higher = easier to read.
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Adjust
Shorter sentences and words raise the score.
Example: “The cat sat on the mat.”
| Measure | Value |
|---|---|
| Words | 6 |
| Sentences | 1 |
| Syllables | 6 |
| Flesch score | 100 (very easy) |
Formula calibrated for English (syllables via vowel groups). Useful indicator elsewhere, approximate thresholds. 100% local calculation.
Frequently asked questions
How is the Flesch score calculated?
Formula: 206.835 − 1.015 × (words / sentences) − 84.6 × (syllables / words). The higher the score, the easier the text: 90-100 = very easy, 60-70 = standard, 0-30 = very difficult.
What is the Flesch-Kincaid grade level?
It estimates the school grade (years of education) needed to understand the text: 8 ≈ middle school, 12 ≈ high school, 16+ ≈ college. Computed from sentence and word length.
Does it work in all languages?
The formula was designed for English (syllable counting via vowel groups). It remains a useful indicator for Latin-script languages, but the thresholds are less precise outside English.
How do I improve my score?
Shorten sentences, prefer short common words, cut subordinate clauses. Aiming for a 60-70 score makes a text accessible to most readers — also good for SEO.