Readability Score Calculator
Paste text, instantly see six standard readability formulas at once.
About this tool
Estimates reading difficulty from countable features (sentence length, syllables per word) — fast and consistent, though no formula understands meaning.
The six scores
Flesch Reading Ease runs ~0-100 (higher = easier). The others estimate a US grade level. Syllable counting uses the standard vowel-group approximation — treat scores as estimates, not certified.