Standard Deviation Calculator
Calculate the sample and population standard deviation, variance, and mean for a set of numbers.
Calculate the sample and population standard deviation, variance, and mean for a set of numbers.
Frequently asked questions
Is Standard Deviation Calculator free to use?
Yes, Standard Deviation Calculator is completely free with no sign-up, usage limits, watermarks or ads gating the result. Just open it and use it.
Is Standard Deviation Calculator safe and private?
Yes. Standard Deviation Calculator runs entirely in your browser — your files and data never leave your device and nothing is uploaded to any server.
Do I need to install anything to use Standard Deviation Calculator?
No installation is required. Standard Deviation Calculator works in any modern web browser on Windows, macOS, Linux, Android and iOS.
How do I use Standard Deviation Calculator?
Calculate the sample and population standard deviation, variance, and mean for a set of numbers.. Enter or upload your input, and you'll get instant results you can copy or download.