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Readability Score
Calculate readability scores using five proven formulas
chars
words
sentences
lines
Results
Result
About Readability Score
Analyze your content's readability using Flesch-Kincaid, Gunning Fog, SMOG Index, Automated Readability Index, and Coleman-Liau Index. Get an overall grade level and actionable suggestions for improvement.
How It Works
The tool counts words, sentences, syllables, and characters, then applies five readability formulas. Each formula uses different linguistic features to estimate the grade level needed to understand the text.
Step by Step
- 1 Paste your content into the input area
- 2 Click Analyze to calculate all five readability scores
- 3 Review the average grade level and individual formula results
Tips
- Aim for grade level 7-8 for general web content
- Shorter sentences and simpler words improve readability
- Use the Flesch Reading Ease score — higher is easier to read
- Academic and technical content can target higher grade levels
Frequently Asked Questions
Which readability formula should I use?
Flesch-Kincaid is the most widely used. The tool averages all five formulas for a more reliable estimate. No single formula is perfect for all content types.
What readability level should I target?
For general web content, aim for grade 7-8 (Flesch Reading Ease 60-70). Blog posts often target grade 6-8. Technical documentation can go higher.