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AI2026-04-01 · 6 min readUpdated: April 2026

How to Check and Improve Your Readability Score

Your content could be reaching more readers. Learn how readability scores work and how to write more clearly.

What is a Readability Score?

Readability scores measure how easy text is to understand. The most common metric is the Flesch-Kincaid Grade Level, which estimates the U.S. school grade required to understand the text. A score of 60–70 is considered ideal for general audiences.

Key Readability Formulas

  • Flesch Reading Ease: 100 = easiest, 0 = hardest. Aim for 60–70 for web content.
  • Flesch-Kincaid Grade Level: Target Grade 7–8 for general audiences.
  • Gunning Fog Index: Similar to FK Grade Level but more sensitive to complex words.

Why Readability Matters for SEO

Google's Helpful Content Update rewards content that serves readers first. Content that's easy to read has lower bounce rates, longer dwell time, and is more likely to be shared — all positive SEO signals.

How to Improve Readability

  • Use shorter sentences (aim for under 20 words average)
  • Break up large paragraphs (3–4 sentences maximum)
  • Replace jargon with simple language
  • Use active voice instead of passive voice
  • Add subheadings every 200–300 words

Frequently Asked Questions

What readability score should I aim for?

For general web content, aim for a Flesch Reading Ease of 60–70 (Grade 7–8 level). Technical content can be higher.

Can I improve readability with AI?

Yes! Use our Paraphrasing Tool in "Simplify" mode to automatically simplify complex sentences.

Conclusion

Improving readability increases engagement, reduces bounce rates, and helps with SEO. Start with our Grammar Checker to identify and fix complex sentences.

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