R = ρL/A
Resistivity ρ is in Ω·m, length L in metres and area A in square metres.
The result is the resistance of one conductor, not the round-trip loop.
Cables
Free · no account
EN · FR
Cable Resistance Calculator
Resistance of a conductor from resistivity, length and cross-sectional area.
Loading the calculator…
Use copper or aluminium, or enter a custom resistivity.
Advertisement
Assumptions and limits.
- Uniform cross-section and resistivity at the selected temperature.
Frequently asked questions
Should I include the return conductor?
For a loop, double the one-way result when the return path is a separate conductor.