AWG 7 Wire
Diameter 0.1443″
Millimeters 3.665 mm
Cross-section 20,822 cmil
mm² 10.55
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 7; 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 7 |
|---|---|---|---|
| 5 | 0.1819″ | 4.620 | +0.0376″ |
| 6 | 0.1620″ | 4.115 | +0.0177″ |
| 7 | 0.1443″ | 3.665 | — |
| 8 | 0.1285″ | 3.264 | −0.0158″ |
| 9 | 0.1144″ | 2.906 | −0.0299″ |
Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 7 gauge sheet (steel: 0.1793″).