Readability Analyzer
Analyze text readability with Flesch-Kincaid, Gunning Fog, SMOG, Coleman-Liau, and ARI scores. Get grade level estimates and improvement suggestions.
Text Statistics
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Words
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Sentences
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Syllables
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Complex Words
Readability Scores
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Flesch-Kincaid Grade
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Gunning Fog Index
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SMOG Index
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Coleman-Liau Index
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Automated Readability
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Average Grade Level
Reading Level: --
Grade levels correspond to US school grades. Lower scores mean easier reading. Most general audiences read comfortably at a grade 7-8 level.
Frequently Asked Questions
What readability scores does this tool calculate?▾
This tool calculates five readability formulas: Flesch-Kincaid Grade Level, Gunning Fog Index, SMOG Index, Coleman-Liau Index, and Automated Readability Index (ARI). Each estimates the education level needed to understand the text.
What is a good readability score?▾
For general web content, aim for a grade level of 6-8 (Flesch-Kincaid). This ensures your content is accessible to the widest audience. Academic or technical writing may naturally score higher.
How is the Flesch-Kincaid reading level calculated?▾
Flesch-Kincaid Grade Level uses the formula: 0.39 × (words/sentences) + 11.8 × (syllables/words) - 15.59. The result corresponds to a U.S. school grade level.
Is my text stored or sent to a server?▾
No. All readability analysis happens entirely in your browser. Your text is never transmitted or stored anywhere.