Free Readability Checker Online
Score your writing with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, and Coleman-Liau — plus sentence-length breakdown, passive-voice detection, and tips.
Frequently Asked Questions
- What is a readability score?
- A readability score measures how easy text is to read and understand. It is calculated using factors like sentence length, word length, and syllable count. Higher Flesch scores mean easier reading.
- What is a good Flesch Reading Ease score?
- For general web content, aim for 60–70 (standard, readable by most adults). Blog posts and marketing copy should target 70–80. Technical documentation can be lower.
- What reading level should I write for?
- Most web content should target a 7th–8th grade reading level (Flesch-Kincaid Grade 7–8). This ensures broad accessibility without feeling simplistic. News articles typically target 6th–8th grade.
- What is the Gunning Fog Index?
- The Gunning Fog Index estimates the years of education needed to understand text. A score of 8 means an 8th-grade education suffices. Scores above 17 indicate extremely complex text.
- How can I improve my readability score?
- Use shorter sentences (under 20 words), prefer common words over complex ones, avoid passive voice, break up long paragraphs, and use subheadings to organize content.