Quartile Deviation Calculator

Online statistics calculator allows you to calculate half of the difference between the upper data value and lower data value of quartiles in a grouped distribution.

Quartile Deviation Calculation for Group Data

Enter all the numbers separated by ','
For e.g.: 1,3,2,6,8,9,10,5
First Quartile =
Median Value =
Third Quartile =
QD =
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Formula : QD = (Upper Quartile - Lower Quartile) / 2 .

Calculation of Quartile Deviation for group data is made easier here.

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