Calculator
American Wire Gauge to metric cross-section reference table.
Generated on offgriddr.com on July 27, 2026. This is an indicative estimate. No rights can be derived from the figures above. For precise quotes, consult a certified installer or electrician.
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Conversion between American Wire Gauge (AWG) and mm². When choosing a wire, always round up to the next larger size. Picking the closest smaller value can be unsafe.
| AWG | Ø inch | Ø mm | kcmil | mm² | mΩ/m | Max A |
|---|---|---|---|---|---|---|
| 0000 (4/0) | 0.46 | 11.684 | 212 | 107 | 0.1608 | 302 |
| 000 (3/0) | 0.4096 | 10.405 | 168 | 85 | 0.2028 | 239 |
| 00 (2/0) | 0.3648 | 9.266 | 133 | 67.4 | 0.2557 | 190 |
| 0 (1/0) | 0.3249 | 8.251 | 106 | 53.5 | 0.3224 | 150 |
| 1 | 0.2893 | 7.348 | 83.7 | 42.4 | 0.4066 | 119 |
| 2 | 0.2576 | 6.544 | 66.4 | 33.6 | 0.5127 | 94 |
| 3 | 0.2294 | 5.827 | 52.6 | 26.7 | 0.6465 | 75 |
| 4 | 0.2043 | 5.189 | 41.7 | 21.2 | 0.8152 | 60 |
| 5 | 0.1819 | 4.621 | 33.1 | 16.8 | 1.028 | 47 |
| 6 | 0.162 | 4.115 | 26.3 | 13.3 | 1.296 | 37 |
| 7 | 0.1443 | 3.665 | 20.8 | 10.5 | 1.634 | 30 |
| 8 | 0.1285 | 3.264 | 16.5 | 8.37 | 2.061 | 24 |
| 9 | 0.1144 | 2.906 | 13.1 | 6.63 | 2.599 | 19 |
| 10 | 0.1019 | 2.588 | 10.4 | 5.26 | 3.277 | 15 |
| 11 | 0.0907 | 2.305 | 8.23 | 4.17 | 4.132 | 12 |
| 12 | 0.0808 | 2.053 | 6.53 | 3.31 | 5.211 | 9.3 |
| 13 | 0.072 | 1.828 | 5.18 | 2.62 | 6.571 | 7.4 |
| 14 | 0.0641 | 1.628 | 4.11 | 2.08 | 8.286 | 5.9 |
| 15 | 0.0571 | 1.45 | 3.26 | 1.65 | 10.45 | 4.7 |
| 16 | 0.0508 | 1.291 | 2.58 | 1.31 | 13.17 | 3.7 |
| 17 | 0.0453 | 1.15 | 2.05 | 1.04 | 16.61 | 2.9 |
| 18 | 0.0403 | 1.024 | 1.62 | 0.823 | 20.95 | 2.3 |
| 19 | 0.0359 | 0.912 | 1.29 | 0.653 | 26.42 | 1.8 |
| 20 | 0.032 | 0.812 | 1.02 | 0.518 | 33.31 | 1.5 |
Guide only. For precise measurements consult a qualified electrician.
