Variance calculator

A Variance calculator (σ2) is a measure of the difference between the numbers in a data set.
In probability and statistics, the variance is the squared deviation of a random variable from its mean.
The variance is the square of the standard deviation, the second central moment of a distribution, and the covariance of the random variable with itself.

Steps to perform the calculation:

1: Enter the numbers separated by a comma in the respective input field

2: Click the button “Calculate Variance” to get the result

3:The variance for the given set of data will be displayed


Variance formulas:


This calculator helps you get the fastest and most accurate results.

Some popular calculation formulas:

Random variable variance:

Population mean:

 Random variable mean:





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