EngiRef / Wire Gauge

12 AWG

12 AWG copper conductor: 2.053 mm diameter, 3.309 mm² cross-section. DC resistance 5.211 Ω per km at 20 °C. Free AWG wire gauge reference - current figures are…

Specification

Gauge (AWG)
12
Diameter (mm)
2.053
Cross-sectional area (mm²)
3.309
Resistance (Ω/km)
5.211
Chassis wiring current (A, indicative)
9.3
Transmission current (A, indicative)
12

Current columns are indicative chart values only. They are not NEC 310.16 ampacities and carry no conductor temperature rating, insulation type, ambient correction or bundling adjustment - size conductors from NEC 310.16 or your local code.