Resistivity (ρ)

Calculate Resistivity (ρ) instantly with the exact formula and a worked example.

Resistivity (ρ)

R, Ω
Area, mm²
Length, m
ρ
0.1Ω·mm²/m
Calculate Resistivity (ρ) instantly with the exact formula and a worked example.

More about: Resistivity (ρ)

What it calculates

The “Resistivity (ρ)” calculator computes ρ in Ω·mm²/m from 3 parameters: r, ω, area, mm², length, m.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters R, Ω = 1, Area, mm² = 1, Length, m = 10 the result is 0.1 Ω·mm²/m.

How to use

  1. Enter r, ω, area, mm² and length, m — each field above is adjustable with a slider.
  2. ρ (Ω·mm²/m) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Resistivity (ρ) calculated?
The Resistivity (ρ) calculator computes ρ (in Ω·mm²/m) from r, ω, area, mm², length, m. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Resistivity (ρ) 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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