📊 Free SEO Tool

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

Words—

Sentences—

Syllables—

Complex words (3+ syllables)—

Avg syllables per word—

Long sentences (20+ words)—

Sentence Difficulty Breakdown

Easy (≤14 words)—

Medium (15–25 words)—

Hard (26+ words)—

✅ Readability Best Practices

Blog content: aim for Flesch score 60–70 (plain English)

Keep most sentences under 20 words for clarity

Use common words: replace "utilise" with "use"

Short paragraphs (2–4 sentences) improve scannability

Use subheadings every 200–300 words in long content

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