Standard Deviation Calculator

The standard deviation calculator determines the sample and population standard deviation and variance of a given set of data.

Result:

Population Standard Deviation:
Population Variance:
Sample Standard Deviation:
Sample Variance:
Mean:
Count:
Sum:

How Does the Standard Deviation Calculator Work?

  1. Enter the data set for what you want to calculate the standard deviation.
  2. The tool supports two input formats. Either you can enter data values with a space delimiter or a comma delimiter. Example: 5 17 23 or 5, 17, 23 or 5,17,23.
  3. After entering the data, click the 'Calculate' button. The tool returns the population and sample standard deviation and variance results. It also shows the mean, count, and sum results.
  4. For the new calculations, click the 'Reset' button.
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