Interquartile Range Calculator

Enter data seperated by commas

Lower quartile:
Upper quartile:
Interquartile Range (IQR):

Calculate the interquartile range (IQR) effortlessly with our online Interquartile Range Calculator. Simply input your dataset in the input field, then click the calculate button.

What is the Interquartile Range?

The interquartile range (IQR) is a measure of statistical dispersion, or in simpler terms, it represents the spread of a set of data. Specifically, the interquartile range is the range between Q1 and Q3 in a dataset.

Interquartile Range Formula

The formula for the interquartile range is

IQR = Q3 – Q1

  • IQR = Interquartile Range
  • Q1 = Lower Interquartile
  • Q3 = Higher Interquartile

How to calculate the Interquartile Range?

Step by step calculate the interquartile range

  1. Arrange the data in ascending order
  2. Calculate the Lower interquartile (Q1) and Higher Interquartile (Q3)
  3. Finally, the Difference between Q1 and Q2 then you get the IQR value

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