Standard Deviation
Calculate Standard Deviation instantly with the exact formula and a worked example.
Standard Deviation
x₁
x₂
x₃
x₄
σ
1.9203
More about: Standard Deviation
What it calculates
The “Standard Deviation” calculator computes σ from 4 parameters: x₁, x₂, x₃, x₄.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters x₁ = 5, x₂ = 8, x₃ = 6, x₄ = 10 the result is 1.92.
How to use
- Enter x₁, x₂, x₃ and x₄ — each field above is adjustable with a slider.
- σ is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Standard Deviation calculated?
The Standard Deviation calculator computes σ from x₁, x₂, x₃, x₄. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Standard Deviation calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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