Quickly lookup equivalent cross-sectional areas and standard current-carrying capacities (ampacities) for copper wires.
| AWG Size | Cross-section Area | Conductor Diameter | NEC Ampacity (Cu) |
|---|---|---|---|
| AWG 4/0 | 107.2 mm² | 11.68 mm | 230 Amps |
| AWG 3/0 | 85 mm² | 10.4 mm | 200 Amps |
| AWG 2/0 | 67.4 mm² | 9.27 mm | 175 Amps |
| AWG 1/0 | 53.5 mm² | 8.25 mm | 150 Amps |
| AWG 1 | 42.4 mm² | 7.35 mm | 130 Amps |
| AWG 2 | 33.6 mm² | 6.54 mm | 115 Amps |
| AWG 4 | 21.2 mm² | 5.19 mm | 85 Amps |
| AWG 6 | 13.3 mm² | 4.11 mm | 65 Amps |
| AWG 8 | 8.37 mm² | 3.26 mm | 45 Amps |
| AWG 10 | 5.26 mm² | 2.59 mm | 30 Amps |
| AWG 12 | 3.31 mm² | 2.05 mm | 20 Amps |
| AWG 14 | 2.08 mm² | 1.63 mm | 15 Amps |
| AWG 16 | 1.31 mm² | 1.29 mm | 10 Amps |
| AWG 18 | 0.82 mm² | 1.02 mm | 6 Amps |
| AWG 20 | 0.52 mm² | 0.81 mm | 3 Amps |