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Free Readability Score Checker

Calculate Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog, and SMOG scores for any text. Understand exactly who can read your content and how to improve it.

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Flesch Reading Ease
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Easy (100)MediumHard (0)
FK Grade Level
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Gunning Fog
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SMOG Index
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Avg Words/Sentence
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Text Statistics
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Sentencesβ€”
Syllablesβ€”
Complex words (3+ syllables)β€”
Avg syllables per wordβ€”
Long sentences (20+ words)β€”
Sentence Difficulty Breakdown
Easy (≀14 words)β€”
Medium (15–25 words)β€”
Hard (26+ words)β€”
βœ… Readability Best Practices
Blog content: aim for Flesch score 60–70 (plain English)
Keep most sentences under 20 words for clarity
Use common words β€” replace "utilise" with "use"
Short paragraphs (2–4 sentences) improve scannability
Use subheadings every 200–300 words in long content
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