AWG 1 Wire
Diameter 0.2893″
Millimeters 7.348 mm
Cross-section 83,694 cmil
mm² 42.41
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 1; area is derived from the diameter. Ampacity depends on insulation, bundling, and the electrical code in force — it is a property of the installation, not the gauge.
Neighboring gauges
| AWG | Diameter | mm | vs AWG 1 |
|---|---|---|---|
| 2/0 | 0.3648″ | 9.266 | +0.0755″ |
| 1/0 | 0.3249″ | 8.252 | +0.0356″ |
| 1 | 0.2893″ | 7.348 | — |
| 2 | 0.2576″ | 6.543 | −0.0317″ |
| 3 | 0.2294″ | 5.827 | −0.0599″ |