Readability Score Calculator (Flesch, Gunning Fog, SMOG)

How readable is your text? Four widely-used scoring formulas give different angles: Flesch Reading Ease (0-100, higher = easier), Flesch-Kincaid Grade (US school grade), Gunning Fog (years of education), SMOG Index (used for medical/govt content), Coleman-Liau Index (character-based, no syllable counting).

How to use the Readability Score Calculator (Flesch, Gunning Fog, SMOG)

Paste text. Output shows scores from 4 formulas plus an interpretation. For wide audience use Flesch Reading Ease > 60 (8th grade or simpler).