Readability Score
Measure Flesch Reading Ease, grade level, word counts, and sentence stats for any passage with instant readability scores.
What is a readability score?
A readability score estimates how easy text is to read. Editors, teachers, and marketers use these metrics before publishing blog posts, lessons, or product copy. The Flesch Reading Ease formula is one of the most common scores. It rewards shorter sentences and words with fewer syllables.
How Flesch Reading Ease works
The score starts at 206.835, then subtracts penalties for long sentences and long words. Higher scores mean easier reading. A score near 60 targets plain English for a general audience. Very low scores suggest dense academic or legal language.
This tool also reports Flesch-Kincaid grade level, Coleman-Liau, Automated Readability Index, and SMOG when your sample has at least 30 words. Compare the table to see whether formulas agree.
Related tools
Pair scores with the Reading Level Checker for grade bands, the Character Word Counter for length stats, and the Headline Analyzer for title readability.
Frequently Asked Questions
What is a good Flesch Reading Ease score?
Scores between 60 and 70 suit most web articles. Marketing pages often aim for 70 or higher. Technical manuals may land near 40 without being wrong for the audience.
Why do formulas disagree?
Each formula weights syllables, sentence length, and character counts differently. Short samples amplify the gap. Use the average as a guide, not a single truth.
Does the checker store my text?
No. Analysis runs in your browser. Nothing is uploaded to a server.
When does SMOG appear?
SMOG needs at least 30 words because it counts polysyllabic words across several sentences. Shorter snippets still show the other indexes.
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