AWG 3 Wire
Diameter 0.2294″
Millimeters 5.827 mm
Cross-section 52,624 cmil
mm² 26.67
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 3; 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 3 |
|---|---|---|---|
| 1 | 0.2893″ | 7.348 | +0.0599″ |
| 2 | 0.2576″ | 6.543 | +0.0282″ |
| 3 | 0.2294″ | 5.827 | — |
| 4 | 0.2043″ | 5.189 | −0.0251″ |
| 5 | 0.1819″ | 4.620 | −0.0475″ |
Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 3 gauge sheet (steel: 0.2391″).