AWG 9 Wire
Diameter 0.1144″
Millimeters 2.906 mm
Cross-section 13,087 cmil
mm² 6.63
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 9; 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 9 |
|---|---|---|---|
| 7 | 0.1443″ | 3.665 | +0.0299″ |
| 8 | 0.1285″ | 3.264 | +0.0141″ |
| 9 | 0.1144″ | 2.906 | — |
| 10 | 0.1019″ | 2.588 | −0.0125″ |
| 11 | 0.0907″ | 2.304 | −0.0237″ |
Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 9 gauge sheet (steel: 0.1495″).