Free Readability Score Checker
Paste any text to instantly check its Flesch-Kincaid grade level, reading ease score, and get actionable tips to improve clarity.
What is a readability score?
A readability score measures how easy your text is to read and understand. The two most widely used formulas are the Flesch Reading Ease score (0-100, higher is easier) and the Flesch-Kincaid Grade Level (the US school grade needed to understand the text).
Most successful online content scores between 60-80 on the Flesch Reading Ease scale, which corresponds to a 6th-8th grade reading level. This is not about dumbing down your writing -- it is about clarity and accessibility.
This free tool calculates both scores instantly, plus gives you word count, sentence count, and actionable tips to improve your writing. No signup required.
Flesch Reading Ease scale
| Score | Grade | Level |
|---|---|---|
| 80-100 | A | Very Easy -- 5th grade |
| 60-79 | B | Easy -- 6th-8th grade |
| 40-59 | C | Moderate -- 9th-12th grade |
| 20-39 | D | Difficult -- College level |
| 0-19 | F | Very Difficult -- Graduate level |