About readability
This tool measures how easy your text is to read. It calculates the Flesch Reading Ease score and the Flesch–Kincaid grade level from your average sentence length and syllables per word, and shows word, sentence and syllable counts. It runs in your browser.
How Readability Checker works
How to use it
- Paste your text.
- Read the score, grade level and stats.
- Shorten sentences and words to make it easier.
How the score works
Flesch Reading Ease runs 0–100; higher is easier. Around 60–70 suits general web content. The grade level estimates the US school grade needed to understand the text. Syllable counts are estimated heuristically.
Common uses
- Check content readability
- Aim for a reading level
- Simplify difficult writing
- Improve web copy
- Check a blog post
- Meet plain-language goals
- Compare draft versions
- Analyse text difficulty
Frequently asked questions
What is a good readability score?
Around 60–70 (plain English) for general audiences.
What does the grade level mean?
The US school grade needed to read the text easily.
How is it calculated?
From average sentence length and syllables per word (Flesch formulas).
Is my text uploaded?
No — it runs in your browser.
Are syllables exact?
They are estimated, so scores are approximate.
How do I improve readability?
Use shorter sentences and simpler words.
Is it free?
Yes — completely free with no sign-up.