Readability Checker
Analyze text with Flesch-Kincaid, Gunning Fog, SMOG & Coleman-Liau formulas
📊 Flesch-Kincaid
🌫️ Gunning Fog
📝 SMOG Index
📏 Coleman-Liau
Paste your text to analyze
Flesch-Kincaid
Grade Level
5.2
5th-6th grade
Fairly Easy
1st grade
College
Gunning Fog
Index
6.8
6th-7th grade
Plain English
Easy
Hard
SMOG Index
Simple Measure of Gobbledygook
5.5
5th-6th grade
Easy
1st
12th+
Coleman-Liau
Index
6.1
6th grade
Standard
1st
College
What This Means
Your text is fairly easy to read. It should be understood by students in 5th-6th grade (ages 10-12).
This level is suitable for general audiences, blogs, and most websites. Consider using shorter sentences
and simpler words if targeting a younger audience, or more complexity for academic readers.
Frequently Asked Questions
📊 What's a good readability score?
For general audiences, aim for grade level 6-8. Technical content can be higher (10-12). Children's books should be below grade 5.
🔢 How are these scores calculated?
Each formula uses different metrics: word length, sentence length, syllable count, and character count to estimate grade level.
🎯 Which formula is most accurate?
Flesch-Kincaid is most common for general text. SMOG is better for healthcare. Gunning Fog works well for business writing.
📝 Minimum text length?
For reliable results, use at least 100 words. The tool works with less, but scores become less statistically significant.