Standard Deviation Calculator
Calculate mean, variance, and standard deviation.
Count
5
Mean
30.0000
Std Dev (Pop.)
14.1421
Std Dev (Sample)
15.8114
Variance (Pop.)
200.0000
Variance (Sample)
250.0000
Sum
150.00
Min / Max
10 / 50
About Standard Deviation Calculator
This is a free, fast, and fully client-side standard deviation calculator tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.