What is the Readability Score Checker?
Score text with Flesch Reading Ease and Flesch-Kincaid Grade Level. On-page SEO is about clarity for both people and search engines. These SEO tools help you write better titles and descriptions, add structured data and keep crawlers on the right paths.
How to use the Readability Score Checker
- Paste or type your your text into the box (a sample is pre-filled so you can see how it works).
- Results update automatically as you type; you can also press Calculate.
- Read the output: result.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Tips for better results
- Write titles for people first; keep the main keyword near the start.
- Use structured data only for content that is visible on the page.
- Check Search Console for queries ranking 8–20 and improve those pages first.
Frequently asked questions
What does the Readability Score Checker do?
Score text with Flesch Reading Ease and Flesch-Kincaid Grade Level.
How is it calculated?
The Readability Score Checker uses this method: FRE = 206.835 − 1.015 (words/sentences) − 84.6 (syllables/words); FKGL = 0.39 (words/sentences) + 11.8 (syllables/words) − 15.59.
Is the Readability Score Checker accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Readability Score Checker is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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