AWG Wire Gauge Chart — Size, Diameter & Ampacity
American Wire Gauge (AWG) chart with wire diameter (mm/inches), cross-section area, resistance, and maximum amperage.
| AWG | Diameter (mm) | Diameter (in) | Area (mm²) | Resistance (Ω/km) | Max A |
|---|---|---|---|---|---|
| 0000 (4/0) | 11.684 | 0.46 | 107.22 | 0.1608 | 302 |
| 000 (3/0) | 10.405 | 0.4096 | 85.03 | 0.2028 | 239 |
| 00 (2/0) | 9.266 | 0.3648 | 67.43 | 0.2557 | 190 |
| 0 (1/0) | 8.251 | 0.3249 | 53.49 | 0.3224 | 150 |
| 1 | 7.348 | 0.2893 | 42.41 | 0.4066 | 119 |
| 2 | 6.544 | 0.2576 | 33.63 | 0.5127 | 94 |
| 3 | 5.827 | 0.2294 | 26.67 | 0.6465 | 75 |
| 4 | 5.189 | 0.2043 | 21.15 | 0.8152 | 60 |
| 5 | 4.621 | 0.1819 | 16.77 | 1.028 | 47 |
| 6 | 4.115 | 0.162 | 13.3 | 1.296 | 37 |
| 7 | 3.665 | 0.1443 | 10.55 | 1.634 | 30 |
| 8 | 3.264 | 0.1285 | 8.366 | 2.061 | 24 |
| 9 | 2.906 | 0.1144 | 6.632 | 2.599 | 19 |
| 10 | 2.588 | 0.1019 | 5.261 | 3.277 | 15 |
| 11 | 2.305 | 0.0907 | 4.172 | 4.132 | 12 |
| 12 | 2.053 | 0.0808 | 3.309 | 5.211 | 9.3 |
| 14 | 1.628 | 0.0641 | 2.081 | 8.286 | 5.9 |
| 16 | 1.291 | 0.0508 | 1.309 | 13.17 | 3.7 |
| 18 | 1.024 | 0.0403 | 0.823 | 20.95 | 2.3 |
| 20 | 0.812 | 0.032 | 0.518 | 33.31 | 1.5 |
| 22 | 0.644 | 0.0253 | 0.326 | 52.96 | 0.92 |
| 24 | 0.511 | 0.0201 | 0.205 | 84.22 | 0.577 |
| 26 | 0.405 | 0.0159 | 0.129 | 133.9 | 0.361 |
| 28 | 0.321 | 0.0126 | 0.081 | 212.9 | 0.226 |
| 30 | 0.255 | 0.01 | 0.0509 | 338.6 | 0.142 |