Readability Score: Flesch-Kincaid & Fog

Free Readability Score Checker — Flesch-Kincaid, Gunning Fog & More

Analyze your text's readability with multiple scoring algorithms: Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog Index. Get instant feedback on how easy your writing is to understand.

Key Features

  • Flesch Reading Ease score (0–100 scale)
  • Flesch-Kincaid Grade Level (US school grade)
  • Gunning Fog Index (years of education needed)
  • Word, sentence, syllable, and paragraph statistics
  • Reading time estimate at 200 wpm
  • Actionable tips to improve readability

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Frequently Asked Questions

What is a good Flesch Reading Ease score?

60–70 is considered standard (readable by 13–15 year olds). Scores above 70 are easy to read; below 30 are very difficult. Aim for 60+ for general audiences.

What grade level should I target?

For general web content, aim for grade 6–8. Technical documentation can be higher. Academic writing is typically grade 12+.