Resistivity (ρ)
Calculate Resistivity (ρ) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Resistivity (ρ)
R, Ω
Area, mm²
Length, m
ρ
0.1Ω·mm²/m
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
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.