Automated Readability Index Calculator - Free, Instant, In Your Browser
Paste text below (at least one full sentence) to calculate its ARI score, which uses character counts instead of syllable estimates.
How to use Automated Readability Index Calculator
- 1Paste your text or data into the input box above.
- 2Automated Readability Index Calculator runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
ARI = 4.71 × (characters/words) + 0.5 × (words/sentences) − 21.43.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.