Handitab

Readability Score

Calculate the Flesch Reading Ease score and Flesch-Kincaid grade level of an English text from its word, sentence, and syllable counts.

About Readability Score

A readability score estimates how easy a text is to read from its sentence and word lengths. This tool computes Flesch Reading Ease, 206.835 - 1.015 x (words per sentence) - 84.6 x (syllables per word), and the Flesch-Kincaid Grade Level, 0.39 x (words per sentence) + 11.8 x (syllables per word) - 15.59. Syllables are estimated by counting vowel groups, so results are approximate, and the formulas are calibrated for English only.

Also known as: Readability Analyzer.

How to use Readability Score

  1. Type or paste into the "English text" box, or press "Use example" to try it with sample data.
  2. The result appears below and updates as you type.
  3. Copy the result with the copy button, or download it as a file where that is offered.

Questions about Readability Score

What is a good Flesch Reading Ease score?

Higher is easier. 60 to 70 is considered plain English that most 13 to 15 year olds can follow, 90 and above reads as very easy, and below 30 is typical of academic writing.

What does the Flesch-Kincaid grade mean?

It maps the same measurements to a US school grade. A result of 8.0 means the text should be understandable to an average eighth grader, around age 13 to 14.

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