Free Readability Score Checker Online
Check the readability of your text using Flesch-Kincaid, Gunning Fog, Coleman-Liau, and other scoring systems. 100% client-side — your text stays private.
How to Use the Readability Score Checker
- Type or paste your text into the input area above.
- Scores update automatically in real time — no button needed.
- View multiple readability scores: Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, and more.
- Check text statistics: words, sentences, syllables, and complex words.
- See estimated reading time and speaking time.
- Click "Copy Stats" to copy all statistics to your clipboard.
Why Use This Readability Score Checker
Readability scores help you understand how easy your text is to read. Whether you're writing for a general audience, students, or professionals, these scores help you adjust your writing level.
Different scoring systems measure different aspects: Flesch Reading Ease gives a general score, Flesch-Kincaid estimates grade level, and Gunning Fog measures complexity. Using multiple scores gives you a complete picture.
Frequently Asked Questions
Flesch Reading Ease scores text on a 0-100 scale. Higher scores indicate easier text. 90-100 is very easy (5th grade), 60-70 is standard (8th-9th grade), and 0-30 is very difficult (college graduate).
Flesch-Kincaid Grade Level estimates the U.S. school grade level needed to understand the text. A score of 8.0 means an 8th grader can understand it.
The Gunning Fog Index considers sentence length and complex words (words with 3+ syllables). Higher scores indicate more complex text. A score of 6 is easy, 12 is hard, and 20 is very difficult.
Complex words are words with three or more syllables. These words are harder to read and can increase the difficulty of your text. Examples: "information", "development", "understanding".
Use Cases
Blog Post Analysis
Check blog post readability grade to ensure content matches your target audience level.
Audience Level
Analyze content for target audience level to match writing complexity to readers.
Website Copy
Improve website copy clarity and accessibility for better user experience.
Academic Writing
Grade academic writing complexity to meet publication and research standards.
SEO Readability
Optimize content for SEO readability to improve search engine rankings and engagement.