Readability Score Checker
Flesch reading ease & grade level for any text · free, no signup
Free Readability Score Checker — Flesch Reading Ease and Grade Level
Readability scores estimate how easy a text is to read. The Flesch Reading Ease score rates text from 0 (very hard) to 100 (very easy), while the Flesch-Kincaid grade level tells you the US school grade needed to understand it. Writers, teachers, marketers and SEO specialists use these scores to make content clearer for the audience they are writing for.
Paste your text and get five popular readability formulas at once — Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, Coleman-Liau and the Automated Readability Index — together with word, sentence and syllable counts, an estimated reading time and speaking time, and a plain-English verdict.
Key features
Five formulas
Flesch, Flesch-Kincaid, Gunning Fog, Coleman-Liau and ARI in one view.
Plain-English verdict
From “very easy” to “very difficult”, with the audience level.
Reading & speaking time
Estimates for silent reading and reading aloud.
Private
Your text is analysed in your browser and never uploaded.
How to use it
- Paste your text (at least a few sentences).
- Read the score panel and the verdict.
- Shorten long sentences and swap complex words for simpler ones.
- Re-check until the score matches your audience.
Worked example
Example
Text: The cat sat on the mat. Words: 6 Sentences: 1 Syllables: 6 Flesch Reading Ease: 116.1 (very easy) Flesch-Kincaid grade: -1.4
Who uses this tool
Content marketers and bloggers
Match reading level to the audience, usually grade 7–9 for the web.
Teachers and students
Check essays and choose age-appropriate reading material.
Legal, health and government writers
Make important information plain and accessible.
Tips for the best results
- Most web content reads best at grade 6–9 (Flesch Reading Ease 60–70).
- Aim for sentences averaging 15–20 words.
- Prefer short, common words over long ones.
- Do not chase a perfect score — technical audiences can handle harder text.
Common mistakes to avoid
- Judging tiny samples; scores need at least 100 words to be reliable.
- Assuming a high score means good writing; clarity and accuracy still matter.
- Including headings, menus and bullet fragments that distort sentence counts.
Why use AZRS QuickFix?
It is 100% free, needs no signup and has no watermark or usage limits. The tool runs in your browser, so what you type stays on your device, and it works on phones, tablets and desktops. New tools are added every week — bookmark this page or browse the full QuickFix toolbox.
Frequently asked questions
What is a good Flesch Reading Ease score?
60–70 is plain English and suits a general audience. 30–50 is fairly difficult and academic.
What does the grade level mean?
It estimates the US school grade a reader needs to understand the text on a first read.
How is reading time calculated?
We assume about 238 words per minute for silent reading and 150 for speaking aloud.
Are these scores used by Google?
Google does not use a readability score directly, but clear writing helps readers stay and engage.
Does it work for non-English text?
The formulas were designed for English, so results for other languages are only approximate.
Is my text saved?
No. Everything happens locally in your browser.