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Calculate the wire size needed for a circuit given the voltage and current rating required. Plus, calculate the size of a wire gauge in AWG.
American wire gauge size calculator and chart.
The following American Wire Gauge (AWG) calculator will calculate the diameter in mm, inches, cross sectional area in mm2, inches2 and kcmil or MCM, resistance per 1000 feet and per 1000 meters and the current rating in amperes for chassis wiring and power transmission applications.
Wire Size Chart. Electrical current is measured in amps. Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. It is important to pick the correct size of wire so that the wire doesn't overheat.
Formula for calculating the cross-section (Area; An) of an AWG wire (n denotes the AWG gauge number). We’re going to simplify every wire’s characteristics (mm, mm2, amps) – from AWG 4/0 to AWG 40 gauge wire – in a systematic and concise easy-to-understand way.
The Wire Ampacity Calculator will quickly calculate the maximum allowable current through a conductor based on wire size (AWG or kcmil), wire insulation, conductor type and installation method. Enter the information below to calculate the maximum allowable ampacity for current-carrying conductors.
Calculate the maximum allowable wire ampacity for an insulated conductor given its gauge, material, temperature rating, ambient temperature, and conductor count.
