Standard Deviation Calculator
Calculate population or sample standard deviation, variance, mean, and count from a list of numbers.
Separate values with commas, spaces, semicolons, or line breaks.
About this tool
What is Standard Deviation Calculator?
Calculate standard deviation for a numeric data set. Choose population or sample standard deviation and view the standard deviation, variance, mean, and number of values entered.
How to use
Get your result in a few steps
- 1
Enter numbers separated by commas, spaces, semicolons, or line breaks.
- 2
Choose population or sample standard deviation.
- 3
Click 'Calculate'.
- 4
Review the standard deviation, variance, mean, and count.
Frequently asked questions
Questions about Standard Deviation Calculator
What is the difference between population and sample standard deviation?
Population standard deviation divides by the number of values, while sample standard deviation uses one less than the number of values.
Can I paste a list of numbers?
Yes. Values can be separated by commas, spaces, semicolons, or line breaks.
Does the calculator also show variance?
Yes. The result includes variance, mean, count, and standard deviation.
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