Free · Math · Statistics & Probability

Standard Deviation Calculator

Calculate population and sample standard deviation, variance, mean, and count for a data set.

  • Calculation method included
  • Private in your browser
  • No signup
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Calculator inputs

Enter your values

Result

Your calculation

Population standard deviation
1.70782513
σ
Sample standard deviation
1.87082869
s
Population variance
2.91666667
Sample variance
3.5
Mean
5.5
Count
6

How to use this calculator

  1. Enter the known values using the units shown.
  2. Choose the calculation you want when more than one method is available.
  3. Calculate, then review the result and the worked formula together.

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Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

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