Standard Deviation Calculator

Calculate the standard deviation and variance of a list of numbers.

Numbers (comma or space separated)

Standard deviation

13.4907

Variance

182.0000

Mean

18.0000

Count

So funktioniert's

Computes the mean, then the average squared distance of each value from the mean (variance), and takes its square root.

Use sample if your numbers are a subset of a larger group; use population if they represent the entire group.