Readability Checker
Analyze your content's readability with multiple scoring systems. Get Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, and SMOG Index scores with suggestions to improve clarity.
Standard
Flesch Reading Ease
Grade Level
Grade 6
8th–9th grade
Avg Sentence Length
8.5 words
Ideal: 15–20 words
Avg Syllables/Word
1.56
Ideal: < 1.7
Total Sentences
4
34 words total
Flesch Reading Ease Scale
Flesch Reading Ease Formula
Score = 206.835 - 1.015(words/sentences) - 84.6(syllables/words) Score Interpretation: 90-100: Very Easy (5th grade) 60-70: Standard (8th-9th grade) 30-50: Difficult (college level) 0-30: Very Confusing (professional)
Examples
Blog post analysis
Result: Flesch: 68 (Standard) | Grade: 8th | Avg sentence: 18 words
Good readability for general audience. Target 60-70 for blogs.
Frequently Asked Questions
What is a good Flesch score for blog posts?
Aim for 60-70 (8th-9th grade reading level) for general audience content. Technical documentation can be 40-50. Children's content should be 80+.
Does readability affect SEO?
Indirectly. Higher readability reduces bounce rate and increases time-on-page — both positive signals for SEO. Google also uses BERT to understand content clarity.