The table below gives some data for wire diamaters for American Wire Gauge or "AWG", and Standard Wire Gauge or "SWG".
Wire:
Bare Dia. mm | Bare Dia. in. | AWG | SWG | Enamel tpi | D.C. Ohms per foot |
| 0.28930 | 1 | | | 0.1264 |
| 0.25760 | 2 | | | 0.1593 |
| 0.22940 | 3 | | | 0.2009 |
| 0.20430 | 4 | | | 0.2533 |
| 0.18190 | 5 | | | 0.3195 |
| 0.16200 | 6 | | | 0.4028 |
| 0.14430 | 7 | | | 0.5080 |
| 0.12860 | 8 | | | 0.6405 |
| 0.11440 | 9 | | | 0.8077 |
2.640 | 0.10400 | | 12 | 9.09 | |
2.590 | 0.10190 | 10 | | 9.60 | 1.0180 |
2.340 | 0.09200 | | 13 | 10.20 | |
2.305 | 0.09700 | 11 | | 10.70 | 1.2840 |
2.040 | 0.08000 | 12 | 14 | 11.90 | 1.6190 |
1.820 | 0.07200 | 13 | 15 | 13.17 | 2.0420 |
1.630 | 0.06400 | 14 | 16 | 15.00 | 2.5240 |
1.450 | 0.05710 | 15 | | 16.80 | 3.1810 |
1.420 | 0.05600 | | 17 | 16.90 | |
1.290 | 0.05080 | 16 | | 18.90 | 4.0180 |
1.220 | 0.04800 | | 18 | 19.70 | |
1.150 | 0.04530 | 17 | | 21.20 | 5.0540 |
1.020 | 0.04000 | 18 | 19 | 23.50 | 6.3860 |
0.910 | 0.03600 | 19 | 20 | 26.20 | 8.0460 |
0.812 | 0.03200 | 20 | 21 | 29.20 | 10.1300 |
0.720 | 0.02800 | 21 | 22 | 33.00 | 12.7700 |
0.644 | 0.02530 | 22 | | 37.00 | 16.2000 |
0.610 | 0.02400 | | 23 | 38.30 | |
0.573 | 0.02260 | 23 | | 41.30 | 20.3000 |
0.560 | 0.02200 | | 24 | 41.60 | |
0.510 | 0.02000 | 24 | 25 | 45.50 | 25.6700 |
0.460 | 0.01800 | 25 | 26 | 51.00 | 32.3700 |
0.420 | 0.01640 | | 27 | 55.10 | |
0.405 | 0.01590 | 26 | | 58.00 | 41.0200 |
0.380 | 0.01480 | | 28 | 61.00 | |
0.361 | 0.01420 | 27 | | 64.90 | 51.4400 |
0.350 | 0.01360 | | 29 | 66.00 | |
0.320 | 0.01250 | 28 | 30 | 72.50 | 65.3100 |
0.290 | 0.01160 | | 31 | 77.50 | |
0.286 | 0.01130 | 29 | | 81.60 | 81.2100 |
0.270 | 0.01080 | | 32 | 82.70 | |
0.255 | 0.01000 | 30 | 33 | 88.00 | 103.7000 |
0.230 | 0.00920 | | 34 | 98.30 | |
0.227 | 0.00890 | 31 | | 101.0 | 130.9000 |
0.210 | 0.00840 | | 35 | 105.8 | |
| 0.00800 | 32 | | | 162.0000 |
| 0.00710 | 33 | | | 205.7000 |
| 0.00630 | 34 | | | 261.3000 |
| 0.00560 | 35 | | | 330.7000 |
| 0.00500 | 36 | | | 414.8000 |
| 0.00450 | 37 | | | 512.1000 |
| 0.00400 | 38 | | | 648.2000 |
| 0.00360 | 39 | | | 846.6000 |
| 0.00310 | 40 | | | 1079.0000 |
| 0.00280 | 41 | | | 1323.0000 |
| 0.00250 | 42 | | | 1659.0000 |
| 0.00220 | 43 | | | 2143.0000 |
| 0.00200 | 44 | | | 2593.0000 |
| 0.00176 | 45 | | | 3348.0000 |
| 0.00157 | 46 | | | 4207.0000 |
| 0.00140 | 47 | | | 5291.0000 |