The standard set of wire sizes in US is referred to as American Wire Gauge. With respect to AWG, higher the gauge smaller the diameter of the wire. Use this table to convert AWG to mm square cross sectional area.
| American Wire Gauge (AWG) | Diameter (inches) | Diameter (mm) | Cross Sectional Area (mm2) |
|---|---|---|---|
| 0000 | 0.46 | 11.68 | 107.16 |
| 000 | 0.4096 | 10.40 | 84.97 |
| 00 | 0.3648 | 9.27 | 67.40 |
| 0 | 0.3249 | 8.25 | 53.46 |
| 1 | 0.2893 | 7.35 | 42.39 |
| 2 | 0.2576 | 6.54 | 33.61 |
| 3 | 0.2294 | 5.83 | 26.65 |
| 4 | 0.2043 | 5.19 | 21.14 |
| 5 | 0.1819 | 4.62 | 16.76 |
| 6 | 0.162 | 4.11 | 13.29 |
| 7 | 0.1443 | 3.67 | 10.55 |
| 8 | 0.1285 | 3.26 | 8.36 |
| 9 | 0.1144 | 2.91 | 6.63 |
| 10 | 0.1019 | 2.59 | 5.26 |
| 11 | 0.0907 | 2.30 | 4.17 |
| 12 | 0.0808 | 2.05 | 3.31 |
| 13 | 0.072 | 1.83 | 2.63 |
| 14 | 0.0641 | 1.63 | 2.08 |
| 15 | 0.0571 | 1.45 | 1.65 |
| 16 | 0.0508 | 1.29 | 1.31 |
| 17 | 0.0453 | 1.15 | 1.04 |
| 18 | 0.0403 | 1.02 | 0.82 |
| 19 | 0.0359 | 0.91 | 0.65 |
| 20 | 0.032 | 0.81 | 0.52 |
| 21 | 0.0285 | 0.72 | 0.41 |
| 22 | 0.0254 | 0.65 | 0.33 |
| 23 | 0.0226 | 0.57 | 0.26 |
| 24 | 0.0201 | 0.51 | 0.20 |
| 25 | 0.0179 | 0.45 | 0.16 |
| 26 | 0.0159 | 0.40 | 0.13 |
American Wire Gauge (AWG), Inches, Millimeter Square Conversion Table online makes the metric conversion calculation easy.
