Readability Score Calculator

Analyse your text with six industry-standard readability formulas. Get grade levels, reading ease scores and detailed text statistics instantly.

Analyse your text

Paste or type your text below, then click Calculate Scores.

What are readability scores?

Readability scores measure how easy or difficult a piece of text is to read. They use mathematical formulas based on word length, sentence length, and syllable count to estimate the education level needed to understand your writing. Writers, educators, and marketers use these scores to ensure their content matches their target audience's reading ability.

Understanding the formulas

The Flesch Reading Ease score ranges from 0 to 100 β€” higher means easier to read. The Flesch-Kincaid Grade Level maps directly to US school grade levels. The Gunning Fog Index estimates years of formal education needed. The Coleman-Liau Index uses character counts instead of syllables. The SMOG Index focuses on polysyllabic words, and the Automated Readability Index uses character and word counts.

Privacy first

All calculations run locally in your browser using JavaScript. Your text is never uploaded, stored, or shared with any server. Close the tab and your content is gone.

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