Readability Score & Grade Calculator
Free ToolEvaluate your content reading difficulty with Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, Coleman-Liau, and sentence statistics.
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Flesch-Kincaid & Gunning Fog Algorithms
Readability Score Calculator
Analyze content readability, writing complexity, estimated reading grade level, and average sentence structure for SEO and clear copywriting.
Reading Ease
US Grade Level
Gunning Fog
Reading Time
Avg Words / Sentence:
Avg Syllables / Word:
Readability Benchmark Scale
90 - 100: Very Easy
5th Grade (Comics)
70 - 89: Easy & Conversational
7th Grade (Blogs)
60 - 69: Standard Online Text
8th - 9th Grade (Web/SEO)
50 - 59: Fairly Difficult
10th - 12th Grade
0 - 49: Difficult / Academic
College & Post-Grad
SEO Recommendation
Frequently Asked Questions
A score between 60.0 and 70.0 is considered ideal for general online audiences (equivalent to an 8th-9th grade reading level).
Keep sentences under 20 words, use simpler one-to-two syllable words, and break long paragraphs into concise bullet points.