Readability Checker — Flesch-Kincaid, Gunning Fog and Grade Level
Check text readability with Flesch-Kincaid, Gunning Fog, SMOG, and Coleman-Liau scores. Shows reading ease level, grade, and sentence/word statistics.
All analysis runs in your browser. Your text is never sent to any server.
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Frequently Asked Questions
Quick answers to common questions
What is a good Flesch-Kincaid reading ease score?+
Flesch-Kincaid Reading Ease scores 0-100, higher means easier: 90-100 = Very Easy (5th grade), 80-90 = Easy (6th grade), 70-80 = Fairly Easy (7th grade), 60-70 = Standard (8th-9th grade). Target 60-70 for general audiences, 70+ for consumer content.
What reading level should a blog post target?+
Successful blogs target 6th-8th grade level (Flesch score 60-80). Shorter sentences, active voice, and common words increase readability without reducing quality.
What is the difference between Flesch-Kincaid and Gunning Fog?+
Flesch-Kincaid measures reading ease using sentence length and syllables per word — higher score equals easier. Gunning Fog measures grade level using sentence length and complex words (3+ syllables) — lower score equals easier.