Readability Checker

This free online tool analyzes how readable your copy is by assessing the ‘reading age’ someone needs to be to understand your writing clearly on a first reading. It works by counting the variables that have the biggest impact on readers, like sentence length, number of syllables per word, and number of passive sentences.  

Readability Checker

This free online tool analyzes how readable your copy is by assessing the ‘reading age’ someone needs to be to understand your writing clearly on a first reading. It works by counting the variables that have the biggest impact on readers, like sentence length, number of syllables per word, and number of passive sentences.  


How to use

How to use

Copy and paste your writing into the box and click the ‘check my readability’ button. The site will then check your writing against the Flesch-Kincaid reading ease score, the Gunning Fog score and the SMOG index (‘Simple Measure of Gobbledygook’).

Copy and paste your writing into the box and click the ‘check my readability’ button. The site will then check your writing against the Flesch-Kincaid reading ease score, the Gunning Fog score and the SMOG index (‘Simple Measure of Gobbledygook’).


Explore more

Explore more