How to Calculate Resistance of a Wire
Wire resistance indicates whether a wire is a good conductor or a good insulator. A good conductor allows electricity to flow more easily while a good insulator inhibits the flow of electricity. Wire resistance equals the wire's resistivity multiplied by the cross sectional area of the wire divided by the length of the wire.
1.Determine cross sectional area using product specification. You can find all resistance wire specification from our sitemap page. And AWG or SWG can be convert to square mm by visiting "Wire Gauge Conversion".
2.Determine wire resistivity by using product specification. You can find all necessary information from above pages.
3.Measure wire length in meters.
4.Plug values into appropriate places in formula. You can download the practical formula here in xlsx format. You only need to input resistivity, wire diameter in mm and wire length in meter to the formula.