Measure the readability of text. Calculate readability score using Flesch-Kincaid, Gunning fog, SMOG, and more formulas. Makes text easier to read.
What Is Readability Pro?
Readability Pro is an easy, smart readability score tool that uses formulas developed by leading experts to measure the readability of text. Each formula uses metrics, such as “syllables per word” or “words per sentence,” to measure readability. They categorize the text into grades like 5th grade, 6th grade, until College grade, for easy reference.
How to Use Readability Pro
- Select a readability formula above by clicking on a tab.
- Enter your text into the text box.
- Check the calculated score!
Readability Formula Options
Flesch-Kincaid
The Flesch-Kincaid test was created by Rudolf Flesch and J. Peter Kincaid in 1975. Originally used in the military, it has since grown into more general use in areas like legal documents. It uses words-per-sentence and syllables-per-word to calculate readability.
Gunning fog
The Gunning fog index was created by Robert Gunning in 1952. Its goal was to promote readable writing in newspapers and business materials. It uses words-per-sentence and number of "complex words" to calculate readability.
SMOG (Simple Measure of Gobbledygook)
The SMOG grade was created by G. Harry McLaughlin in 1969. Its goal was to make the Gunning fog index more accurate and easy to calculate. It uses number of 3+ syllable words to calculate readability.