Interquartile Range Calculator

This simple tool works out the interquartile range of a set of numbers by calculating the 25th and 75th percentiles, and then subtracting the former from the latter (i.e., IQR = Q3 - Q1).

Enter your data into the text box below, and then hit the "Calculate Percentile" button. Note, by default this tool calculates the 50th percentile value (i.e., the median).

Your Data

No calculation performed yet.

| Privacy | Legal Disclaimer | Cite | Contact | About | ©2021 Jeremy Stangroom