IQR Calculator
Enter up to 10 values to compute the first quartile (Q1), third quartile (Q3), and interquartile range (IQR = Q3 - Q1). The IQR measures the spread of the middle 50% of data.
Inputs
Results
IQR
13.5
Q1 (25th Percentile)
9.25
Q2 (Median)
17.5
Q3 (75th Percentile)
22.75
Lower Fence
-11
Upper Fence
43
Min
4
Max
30