Readability Checker
Score your writing with Flesch, Flesch-Kincaid and Gunning fog.
Readable writing gets read.
About Readability Checker
Paste your writing to get its Flesch reading ease score, Flesch-Kincaid grade level and Gunning fog index, plus words per sentence, complex-word percentage and reading time. A quick way to make blog posts, emails and product copy easier to read. Built for English text.
Readable writing gets read. This checker scores your text with the Flesch reading ease score, the Flesch–Kincaid grade level and the Gunning fog index, and shows sentence length, complex-word share and reading time so you can see what to simplify.
How to use Readability Checker
- Paste your writing into the box.
- Read the overall rating and the individual scores.
- Shorten long sentences and replace complex words, then check again.
Key features
- Flesch reading ease, Flesch–Kincaid grade and Gunning fog.
- Words per sentence, complex-word percentage and reading time.
- Plain-language rating from Very easy to Very difficult.
Common use cases
- Improving blog posts, emails and landing pages.
- Matching content to an audience's reading level.
- Checking student writing.
Frequently asked questions
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