Standard Wire Gauges
| Gauge | Inch | mm | Gauge | Inch | mm |
| 0 | 0.324 | 8.230 | 23 | 0.024 | 0.610 |
| 1 | 0.300 | 7.620 | 24 | 0.022 | 0.559 |
| 2 | 0.276 | 7.010 | 25 | 0.020 | 0.508 |
| 3 | 0.252 | 6.401 | 26 | 0.018 | 0.457 |
| 4 | 0.232 | 5.893 | 27 | 0.0164 | 0.4166 |
| 5 | 0.212 | 5.385 | 28 | 0.0148 | 0.3759 |
| 6 | 0.192 | 4.877 | 29 | 0.0136 | 0.3454 |
| 7 | 0.176 | 4.470 | 30 | 0.0124 | 0.3150 |
| 8 | 0.160 | 4.064 | 31 | 0.0116 | 0.2946 |
| 9 | 0.144 | 3.658 | 32 | 0.0108 | 0.2743 |
| 10 | 0.128 | 3.251 | 33 | 0.0100 | 0.2540 |
| 11 | 0.116 | 2.964 | 34 | 0.0092 | 0.2337 |
| 12 | 0.104 | 2.642 | 35 | 0.0084 | 0.2134 |
| 13 | 0.092 | 2.337 | 36 | 0.0076 | 0.1930 |
| 14 | 0.080 | 2.032 | 37 | 1.0068 | 0.1727 |
| 15 | 0.072 | 1.829 | 38 | 0.0060 | 0.1524 |
| 16 | 0.064 | 1.626 | 39 | 0.0052 | 0.1321 |
| 17 | 0.056 | 1.422 | 40 | 0.0048 | 0.1219 |
| 18 | 0.048 | 1.219 | 41 | 0.0044 | 0.1118 |
| 19 | 0.040 | 1.016 | 42 | 0.0040 | 0.1016 |
| 20 | 0.036 | 0.914 | 43 | 0.0036 | 0.0914 |
| 21 | 0.032 | 0.813 | 44 | 0.0032 | 0.0813 |
| 22 | 0.028 | 0.711 | 45 | 0.0028 | 0.0711 |