Readability Checker
Free GEO Readability Checker
Is your content LLM optimized?
The Flesch-Kincaid Grade Level formula scores how complex your writing feels based on sentence length and syllables per word. LLMs prefer paragraphs in the 6-8 grade window—polished enough for authority, light enough for fast comprehension.
Instant analyzer
Paste any paragraph and get the Flesch-Kincaid grade instantly.
Current gradeWaiting for text
We calculate grade levels using the Flesch-Kincaid formula, Flesch Reading Ease, and a simplified SMOG check.
Grade level
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Enter text to analyze readability.
Flesch Reading Ease
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Higher is easier. 60-70 is a conversational sweet spot.
Recommendation
Grades 6-8
That range keeps AI-ready copy sharp without losing nuance.
Recommendation: Aim for a Flesch-Kincaid grade level between 6 and 8 to keep AI-facing content sharp, punchy, and easy to quote.