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AI Readability Checker

Paste any text to instantly calculate Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog Index, and SMOG score.

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Flesch Reading Ease
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Flesch-Kincaid Grade
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Gunning Fog Index
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SMOG Index
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Sentences
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Words
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Syllables
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How to use AI Readability Checker

  1. Paste or type your text into the input area.
  2. View all four readability scores instantly.
  3. Edit your text and watch the scores update in real time.

What is AI Readability Checker?

Readability scores help you write for your audience. This checker calculates four industry-standard readability metrics from your text: Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and SMOG Index.

Use these scores to ensure your content matches the reading level of your target audience — from elementary school to academic publications.

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FAQ

What's a good Flesch Reading Ease score?
60-70 is considered plain English (8th-9th grade). 80+ is easy to read. Below 30 is best for college graduates.
Which score should I use?
Flesch Reading Ease is most popular for general content. Flesch-Kincaid Grade is best for education. Fog and SMOG are used in healthcare and technical writing.

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