Standard Deviation Calculator
Enter numbers to calculate the standard deviation, which measures how spread out the values are from the mean.
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Standard Deviation
Enter values to calculate
How to Use the Standard Deviation Calculator
1
Enter numbers.
2
See standard deviation.
3
Also see variance.
Frequently Asked Questions
What is standard deviation?
A measure of how much values vary from the mean. Low SD means values are close to the mean; high SD means they're spread out.