Readability Score Calculator

Paste in any text to get its Flesch Reading Ease score and Flesch-Kincaid Grade Level.

Flesch Reading Ease-
Flesch-Kincaid Grade Level-
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What Is a Readability Score?

The Flesch Reading Ease and Flesch-Kincaid Grade Level are widely used formulas that estimate how easy a piece of text is to read, based on sentence length and syllable complexity.

Formula

Flesch Reading Ease = 206.835 - 1.015 × (Words ÷ Sentences) - 84.6 × (Syllables ÷ Words)

Flesch-Kincaid Grade Level = 0.39 × (Words ÷ Sentences) + 11.8 × (Syllables ÷ Words) - 15.59

How to Use This Calculator

Example

A Reading Ease score of 60-70 corresponds to text that's easily understood by 8th and 9th graders - a common target for general web content.

Frequently Asked Questions

How is readability score calculated?

Formulas like Flesch-Kincaid use sentence length and syllable count to estimate required comprehension grade level.

What does a higher grade level mean?

More complex text requiring a higher education level to read comfortably.

Why does readability matter for writing?

Content matched to your audience's reading level improves comprehension and engagement.

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