Calculate the interquartile range (IQR) of a dataset. The IQR is the difference between Q3 and Q1, representing the middle 50% of the data and is robust against outliers.
Enter your values below
How this calculator works
The interquartile range is calculated by subtracting the first quartile (Q1) from the third quartile (Q3). It measures the spread of the middle half of the data.
Common questions about this calculator
