| • Science | • People | • Locations | • Timeline |
In common with many non- metric gauging systems, the measurement involved (wire diameter in this case) decreases with increasing gauge number.
The following applies to solid wires. Stranded wires are calculated by calculating the equivalent cross-sectional area.
| AWG | Diameter ( mm) | Diameter ( inch) |
| 0000000 (6/0) | 14.732 | 0.5800 |
| 000000 (5/0) | 13.119 | 0.5165 |
| 00000 (4/0) | 11.684 | 0.4600 |
| 000 (3/0) | 10.404 | 0.4096 |
| 00 (2/0) | 9.266 | 0.3648 |
| 0 (1/0) | 8.252 | 0.3249 |
| 1 | 7.348 | 0.2893 |
| 2 | 6.543 | 0.2576 |
| 3 | 5.827 | 0.2294 |
| 4 | 5.189 | 0.2043 |
| 5 | 4.621 | 0.1819 |
| 6 | 4.115 | 0.1620 |
| 7 | 3.665 | 0.1443 |
| 8 | 3.264 | 0.1285 |
| 9 | 2.906 | 0.1144 |
| 10 | 2.588 | 0.1019 |
| 11 | 2.304 | 0.0907 |
| 12 | 2.052 | 0.0808 |
| 13 | 1.829 | 0.0720 |
| 14 | 1.628 | 0.0641 |
| 15 | 1.450 | 0.0571 |
| 16 | 1.291 | 0.0508 |
| 17 | 1.150 | 0.0453 |
| 18 | 1.024 | 0.0403 |
| 19 | 0.9119 | 0.0359 |
| 20 | 0.8128 | 0.0320 |
| 21 | 0.7239 | 0.0285 |
| 22 | 0.6426 | 0.0253 |
| 23 | 0.5740 | 0.0226 |
| 24 | 0.5106 | 0.0201 |
| 25 | 0.4547 | 0.0179 |
| 26 | 0.4038 | 0.0159 |
| 27 | 0.3606 | 0.0142 |
| 28 | 0.3200 | 0.0126 |
| 29 | 0.2870 | 0.0113 |
| 30 | 0.2540 | 0.0100 |
| 31 | 0.2261 | 0.0089 |
| 32 | 0.2032 | 0.0080 |
| 33 | 0.1803 | 0.0071 |
| 34 | 0.1601 | 0.0063 |
| 35 | 0.1422 | 0.0056 |
| 36 | 0.1270 | 0.0050 |
| 37 | 0.1143 | 0.0045 |
| 38 | 0.1016 | 0.0040 |
| 39 | 0.0889 | 0.0035 |
| 40 | 0.0787 | 0.0031 |
A few cross-references between AWG and metric stranded wire: