AWG 27 Wire
Diameter 0.0142″
Millimeters 0.361 mm
Cross-section 202 cmil
mm² 0.1022
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = 27; 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 27 |
|---|---|---|---|
| 25 | 0.0179″ | 0.455 | +0.0037″ |
| 26 | 0.0159″ | 0.404 | +0.0017″ |
| 27 | 0.0142″ | 0.361 | — |
| 28 | 0.0126″ | 0.320 | −0.0016″ |
| 29 | 0.0113″ | 0.287 | −0.0029″ |
Measuring sheet metal, not wire? Sheet uses a different gauge scale — see 27 gauge sheet (steel: 0.0164″).