Readability Score Checker
Analyze your text with 6 readability formulas. Get Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, Coleman-Liau, SMOG, and ARI scores instantly.
- 100% free
- No sign-up
- No limits
- Instant results
- Six industry-standard readability formulas
- Grade level interpretation for each score
- Word, sentence, and syllable statistics
- Color-coded difficulty indicators
- Free, no signup, 100% client-side
What is Readability Score Checker?
A readability score checker analyzes your text using established linguistic formulas to determine how easy or difficult it is to read.
This tool calculates six industry-standard indices: Flesch Reading Ease (0-100 scale where higher is easier), Flesch-Kincaid Grade Level, Gunning Fog Index, Coleman-Liau Index, SMOG Index, and the Automated Readability Index. Each formula uses different combinations of word length, sentence length, syllable count, and character count to estimate the US school grade level needed to understand the text. Content writers use readability scores to optimize blog posts for their target audience, ensure legal documents are accessible, and improve SEO rankings since search engines favor readable content.
How to use Readability Score Checker
- 1
Paste your text
Enter at least 2-3 sentences in the text area for accurate results. Longer texts produce more reliable scores.
- 2
Review the scores
Six readability scores appear instantly. Each shows a numeric value, the formula name, and a grade level or difficulty interpretation.
- 3
Check text statistics
Below the scores you will find word count, sentence count, syllable count, average words per sentence, and complex word count.
- 4
Copy results
Click Copy all to get all scores and statistics on your clipboard for use in reports or content briefs.
Everything this tool
does for you
- Six readability formulas calculated simultaneously
- Color-coded Flesch Reading Ease indicator
- Grade level interpretation for every score
- Word, sentence, syllable, and complex word counts
- Average words per sentence metric
- One-click copy of all results
- Real-time calculation as you type
- 100% client-side — your text stays private
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Frequently asked questions
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