Math · NUMORA
Statistics Calculator
Mean, median, standard deviation.
Open interactive calculatorHow to use
Comma or space-separated sample.
Formula
s = sqrt(Σ(x−μ)²/(n−1))
FAQ
Is this Statistics calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Comma or space-separated sample.
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