Measure how easy your text is to read using the Flesch Reading Ease formula — a proven metric since 1948. Pure local calculation, no data leaves your browser.
Paste any English text to analyze its readability
Score = 206.835
− 1.015 × (words/sentences)
− 84.6 × (syllables/words)
Developed by Rudolf Flesch in 1948. Shorter sentences and shorter words = higher (easier) scores.
General web content: 60–70. Technical docs: 30–50. Children's content: 80+.
Using a heuristic vowel-group algorithm with a database of 100+ common exceptions.
Flesch is a well-established heuristic, not a professional assessment. Use as a guide.
We use one essential cookie to remember your consent preference. No tracking scripts are used.