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Wire DC resistance calculator

This calculator calculates the DC resistance of a wire.

Resistivity (µΩm)
Length (m)
Multiplier
Diameter (mm)
Radius (mm)
CSA (mm^2)
Resistance (Ω)

The multiplier field can be used to factor in return path (multiplier=2), or Rrf/Rdc resistance factor from Skin depth calculator.

Resistivity

Resistivity of a material is the resistance from face to opposite face of a 1m cube of a material. Resistivity varies with different metals, a few common conductors are listed below.

Conductor Resistivity (µΩm)
Copper
0.0168
Silver
0.0159
Aluminium
0.0282
Aluminium 7xxx annealed (Zal)
0.045
Zinc
0.059
Brass
0.064
Nickel
0.064
Iron
0.100
Tin
0.109
Solder (63/37 Eutectic)
0.145
Mild steel
0.20
Lead
0.22
Stainless steel 316
0.75
Stainless steel 17-7 PH
0.82

 

Examples

Example 1

 

References / links

Other VK1OD tools.

If you're clever, you will have worked out you can download this page to your hard disk. If you're smart, you won't, you will run it from the web site and automatically take advantage of any updates.


© Copyright: Owen Duffy 1995, 2016. All rights reserved. Disclaimer.