Free readability tools to check for Reading Levels, Reading Assessment, and Reading Grade Levels.

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Free Readability Tools
Free Readability Calculators

Learn about Readability Formulas:
Dale-Chall Formula
Flesch Reading Formula
The Fry Graph
SPACHE Formula
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Readability Help:
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Writing Tips:
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English Writing Products:
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About Us

Since 2003 has provided free readability tools and resources to help writers and non-writers identify the reading/grade level of their writing.

For many years we sold two popular readability software programs: ReadabilityPlus and ReadabilityCalc (Win/Mac), both produced by Micro Power and Light Co. These products are no longer available.

Whether you write professionally or not, we welcome you to use our Automatic Readability Calculator to analyze your text through seven popular readability tools to establish an overall:

1) Reading level: from easy to very difficult.
2) Grade Level: 1st grade to graduate school.
3) Age Group: 6 to 22 years old and above.

These three pieces of data can inform you in advance if what you have written will be too easy, too difficult, or on target with your readers.

If you write for young readers (K-4th grade), we welcome you to use our revised Dale-Chall and Spache readability tools. Both readability calculators compare your text against a wordlist of commonly-known hard words and yield a grade level.

Using readability formulas to assess a text's "reading level" can help you write more effectively for readers; however, they still can't tell you if readers will comprehend your text after they read it. Reading a text and comprehending a text require two different skillsets. Readers may be capable of identifying and defining each word in a text, but do they truly know the message the text is imparting as a whole?

To help writers and non-writers grasp the pros and cons of readability formulas, we have published a variety of articles, ranging from "How Readability Formulas Work" to "The Practical Purposes of Using Readability Formulas." We also offer practical writing tips to help you create reader-friendly materials, whether it's writing a how-to article, a blog post, a health insurance policy, a technical manual, an email, etc. is a non-commercial "passion project" created by freelance writer Brian Scott. Visit Brian's other websites:,,, and

Stylewriter Software
StyleWriter software: use it to write better content! Download your free trial!