Interquartile Range Calculator - Free, Instant, In Your Browser
Enter at least 4 numbers separated by commas or spaces to calculate the spread of the middle 50% of the data.
How to use Interquartile Range Calculator
- 1Paste your text or data into the input box above.
- 2Interquartile Range 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?
IQR = Q3 - Q1, the difference between the third and first quartiles - less sensitive to outliers than the full range.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.