FieldengElectrical & Power
Resistance from Resistivity
Calculate conductor resistance from resistivity, length, and area.
Electrical & PowerEngineering Fundamentals
Calculate conductor resistance from resistivity, length, and area.
App id: ELEC-06. Reference version 1.1.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
R = ρL/AInputs
| Name | Unit |
|---|---|
| Resistivity | ohm-m |
| Length | m |
| Area (optional) | mm2 |
| Diameter (optional) | mm |
Outputs
| Name | Unit |
|---|---|
| Resistance (hero result) | ohm |
Diagnose
This tool does not attach diagnose observations.
Assumptions
- Uniform cross-section. Dimensions are SI-canonical before evaluation.
- Enter area or round-conductor diameter. Diameter is ignored when area is supplied.
Provenance
- General electrical engineering relationship.