Reading Level Calculator
Check readability with Flesch Reading Ease and grade level scores.
Paste some text to see its readability score.
Higher Flesch Reading Ease (0–100) means easier to read; aim for 60+ for a general audience. The Flesch–Kincaid grade estimates the US school grade needed to understand the text. Syllables are estimated, so treat scores as a guide. Runs in your browser.
Paste text to measure how easy it is to read. The calculator returns the Flesch Reading Ease score (0–100, higher is easier) and the Flesch–Kincaid grade level, with a plain-English interpretation and the word, sentence and syllable counts behind them. Useful for writing clear web content, emails and documents — and for checking AI-generated copy isn't too dense. Runs in your browser.
How to use the Reading Level Calculator
- Paste the text you want to check.
- Read the Flesch Reading Ease and grade-level scores.
- Simplify long sentences and words to raise the ease score.
Frequently asked questions
What is a good Flesch Reading Ease score?
Aim for 60 or above for a general audience — that's plain English readable by most adults. Marketing and web copy often target 60–70; technical writing scores lower.
What does the grade level mean?
The Flesch–Kincaid grade level estimates the US school grade needed to understand the text. A grade of 8 means a typical 13–14-year-old could read it comfortably.
How are syllables counted?
By a vowel-group heuristic that handles most words well. A few unusual words may be off by a syllable, so treat the scores as a close guide rather than an exact measure.