Calculators > Interquartile range calculator
This interquartile range calculator finds the IQR for you, along with the 25th percentile, the 50th percentile (the median) and the 75th percentile. The calculator then subtracts the 75th percentile from the 25th percentile to find the interquartile range using the formula Q3 – Q1 = IQR. Just type your numbers into the text box and click the “Find the interquartile range” button!
- 25th Percentile:
- 50th Percentile:
- 75th Percentile:
- Interquartile Range:
Tip: You don’t have to enter your numbers separated by commas in the text box; you can just type in a list of numbers and the calculator will add the commas for you!