| Wire Number (Gauge) | Standard Wire Gauge (SWG) | American Wire Gauge (AWG) | ||
|---|---|---|---|---|
| gauge | in. | equivalent in mm |
in. | equivalent in mm |
| 0000000 (7/0) | 0.5000 | 12.700 | - | - |
| 000000 (6/0) | 0.4640 | 11.786 | 0.580000 | 14.7320 |
| 00000 (5/0) | 0.4320 | 10.973 | 0.516500 | 13.1191 |
| 0000 (4/0) | 0.4000 | 10.160 | 0.460000 | 11.6840 |
| 000 (3/0) | 0.3720 | 9.449 | 0.409642 | 10.4049 |
| 00 (2/0) | 0.3480 | 8.839 | 0.364796 | 9.2658 |
| 0 (1/0) | 0.3240 | 8.230 | 0.324861 | 8.2515 |
| 1 | 0.3000 | 7.620 | 0.289297 | 7.3481 |
| 2 | 0.2760 | 7.010 | 0.257627 | 6.5437 |
| 3 | 0.2520 | 6.401 | 0.229423 | 5.8273 |
| 4 | 0.2320 | 5.893 | 0.2043 | 5.1892 |
| 5 | 0.2120 | 5.385 | 0.1819 | 4.6203 |
| 6 | 0.1920 | 4.877 | 0.1620 | 4.1148 |
| 7 | 0.1760 | 4.470 | 0.1443 | 3.6652 |
| 8 | 0.1600 | 4.064 | 0.1285 | 3.2639 |
| 9 | 0.1440 | 3.658 | 0.1144 | 2.9058 |
| 10 | 0.1280 | 3.251 | 0.1019 | 2.5883 |
| 11 | 0.1160 | 2.946 | 0.0907 | 2.3038 |
| 12 | 0.1040 | 2.642 | 0.0808 | 2.0523 |
| 13 | 0.0920 | 2.337 | 0.0720 | 1.8288 |
| 14 | 0.0800 | 2.032 | 0.0641 | 1.6281 |
| 15 | 0.0720 | 1.829 | 0.0571 | 1.4503 |
| 16 | 0.0640 | 1.626 | 0.0508 | 1.2903 |
| 17 | 0.0560 | 1.422 | 0.0453 | 1.1506 |
| 18 | 0.0480 | 1.219 | 0.0403 | 1.0236 |
| 19 | 0.0400 | 1.016 | 0.0359 | 0.9119 |
| 20 | 0.0360 | 0.914 | 0.0320 | 0.8128 |
| 21 | 0.0320 | 0.813 | 0.0285 | 0.7239 |
| 22 | 0.0280 | 0.711 | 0.0253 | 0.6426 |
| 23 | 0.0240 | 0.610 | 0.0226 | 0.5740 |
| 24 | 0.0220 | 0.599 | 0.0201 | 0.5105 |
| 25 | 0.0200 | 0.508 | 0.0179 | 0.4547 |
| 26 | 0.0180 | 0.457 | 0.0159 | 0.4039 |
| 27 | 0.0164 | 0.417 | 0.0142 | 0.3607 |
| 28 | 0.0148 | 0.376 | 0.0126 | 0.3200 |
| 29 | 0.0136 | 0.345 | 0.0113 | 0.2870 |
| 30 | 0.0124 | 0.315 | 0.0100 | 0.2540 |