Readability Score Checker

Analyze your writing complexity using the Flesch-Kincaid scale.

The Flesch-Kincaid readability formula measures how easy your text is to read on a scale of 0-100. Scores above 60 suit most online readers; academic writing typically scores below 30. Paste your text for an instant grade level and ease score — no signup.

  1. Paste or type your text
  2. See Flesch-Kincaid score and grade level update live
  3. Use the guidance to simplify if needed
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About the Flesch-Kincaid Scale

The Flesch-Kincaid formulas are the most widely used readability tests.

  • Reading Ease: A score from 0–100. Higher scores indicate easier material. 60–70 is standard for web content.
  • Grade Level: Corresponds to US school grade levels. An 8th-grade level is recommended for broad public reach.

Frequently Asked Questions

What is the Flesch-Kincaid readability score?

The Flesch-Kincaid readability score measures how easy text is to understand on a scale of 0 to 100. Higher scores mean easier reading. A score of 60 to 70 is standard for web content, scores above 80 are fairly easy, and scores below 30 are very difficult and best suited to academic audiences.

How is the Flesch-Kincaid grade level calculated?

The formula uses average sentence length and average syllables per word: grade level equals 0.39 times average sentence length plus 11.8 times average syllables per word minus 15.59. The result corresponds to US school grade levels. A score of 8 means an 8th grader can understand the text.

What readability score should blog posts aim for?

Blog posts and general web content should aim for a Flesch-Kincaid Reading Ease score of 60 to 70, which corresponds to a grade level of 6 to 8. This range suits the widest audience including readers at varying education levels and makes content accessible to non-native speakers.

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