Readability Scorer - Flesch-Kincaid, Gunning Fog, Coleman-Liau

Analyze how easy your text is to read using Flesch-Kincaid, Gunning Fog, and Coleman-Liau scoring formulas. Perfect for targeting specific audiences.

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About These Formulas

Flesch-Kincaid Reading Ease — Score 0-100. Higher is easier. 60-70 is standard readable prose. Uses average sentence length and average syllables per word.

Flesch-Kincaid Grade Level — U.S. grade level required to understand the text. Grade 8 is suitable for most general audiences.

Gunning Fog Index — Estimates years of formal education needed. Under 12 is ideal for most readers. Uses complex words (3+ syllables).

Coleman-Liau Index — Uses characters per word instead of syllables. More accurate for digital text. Calculates grade level needed.

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