Quadratic Mean (RMS)
Calculate Quadratic Mean (RMS) instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.
Quadratic Mean (RMS)
x₁
x₂
x₃
RMS (root mean square)
4.0825
More about: Quadratic Mean (RMS)
What it calculates
The “Quadratic Mean (RMS)” calculator computes RMS (root mean square) from 3 parameters: x₁, x₂, x₃.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters x₁ = 3, x₂ = 4, x₃ = 5 the result is 4.08 (√(Σx²/n)).
How to use
- Enter x₁, x₂ and x₃ — each field above is adjustable with a slider.
- RMS (root mean square) 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 Quadratic Mean (RMS) calculated?
The Quadratic Mean (RMS) calculator computes RMS (root mean square) from x₁, x₂, x₃. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Quadratic Mean (RMS) 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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