Standard Deviation Calculator

Why use an online standard deviation calculator?

MYcalcu’s standard deviation calculator uses your data set and shows the work required for the calculations.

It helps you to find the standard deviation, variance, count of data points n, mean, and sum of squares.

Standard deviation is a statistical measure of diversity or variability in a data set.

A low standard deviation indicates that data points are generally close to the mean or the average value. A high standard deviation indicates greater variability in data points or higher dispersion from the mean.

Standard Deviation Calculator

Standard Deviation Calculator Results

Standard Deviation
Total Numbers
Sum of Numbers


How does it work?

The formula for standard deviation is:

Standard Deviation Formula - Basic Mathematics

How to use a standard deviation calculator?

Enter your data set with commas, lines, and spaces separated from each other.

You can also copy and paste your data from a spreadsheet or a document.