Below we offer a table of wire gauge data. What's this got to do with microwaves? If you gotta ask, you must be one of those antenna nerds... last time we checked, wire is still needed to bring power to all those "wireless" prototypes!
The diameter data we reference a table we found on Coilcraft's web site (thanks, Dudes!) We calculated the ohms/meter and ohms/foot based on the conductivity of pure copper (the actual resistance will be slightly more).
Here's some AWG trivia: the AWG scale was once called the Brown and Sharpe (B&S) wire gauge. The AWG system is a geometrical progression where each larger size has 26% more area than the previous size.
The maximum DC current we found on tpub.com, so if it's wrong don't blame us! The values are for insulated wire, you can achieve higher current levels if you use bare wire, just don't kill yourself.
The table is for unstranded wire. We'll add a table on stranded wire later.
| AWG |
Diameter (mils) |
Diameter (mm) |
Area (mils^2) |
Area (mm^2) |
Ohms/meter |
Ohms/foot |
Maximum DC current* (A) |
| 50 |
1.00 |
0.025 |
0.785 |
0.00049 |
34.08208 |
10.38822 |
|
| 49 |
1.10 |
0.028 |
0.950 |
0.00062 |
27.17002 |
8.28142 |
|
| 48 |
1.24 |
0.031 |
1.208 |
0.00075 |
22.16576 |
6.75612 |
|
| 47 |
1.40 |
0.036 |
1.539 |
0.00102 |
16.43619 |
5.00975 |
|
| 46 |
1.57 |
0.040 |
1.936 |
0.00126 |
13.31331 |
4.05790 |
|
| 45 |
1.76 |
0.045 |
2.433 |
0.00159 |
10.51916 |
3.20624 |
|
| 44 |
2.00 |
0.051 |
3.142 |
0.00204 |
8.18966 |
2.49621 |
|
| 43 |
2.20 |
0.056 |
3.801 |
0.00246 |
6.79251 |
2.07036 |
|
| 42 |
2.50 |
0.064 |
4.909 |
0.00322 |
5.20051 |
1.58512 |
|
| 41 |
2.80 |
0.071 |
6.158 |
0.00396 |
4.22561 |
1.28797 |
|
| 40 |
3.10 |
0.079 |
7.548 |
0.00490 |
3.41312 |
1.04032 |
|
| 39 |
3.50 |
0.089 |
9.621 |
0.00622 |
2.68922 |
0.81967 |
|
| 38 |
4.00 |
0.102 |
12.57 |
0.00817 |
2.04741 |
0.62405 |
|
| 37 |
4.50 |
0.114 |
15.90 |
0.01021 |
1.63907 |
0.49959 |
|
| 36 |
5.00 |
0.127 |
19.63 |
0.01267 |
1.32068 |
0.40254 |
|
| 35 |
5.60 |
0.142 |
24.63 |
0.01584 |
1.05640 |
0.32199 |
|
| 34 |
6.30 |
0.160 |
31.17 |
0.02011 |
0.83208 |
0.25362 |
|
| 33 |
7.10 |
0.180 |
39.59 |
0.02545 |
0.65745 |
0.20039 |
|
| 32 |
8.00 |
0.203 |
50.27 |
0.03237 |
0.51691 |
0.15755 |
0.32 |
| 31 |
8.90 |
0.226 |
62.21 |
0.04011 |
0.41705 |
0.12712 |
|
| 30 |
10.00 |
0.254 |
78.54 |
0.05067 |
0.33017 |
0.10064 |
0.52 |
| 29 |
11.30 |
0.287 |
100.3 |
0.06469 |
0.25861 |
0.07882 |
|
| 28 |
12.60 |
0.320 |
124.7 |
0.08042 |
0.20802 |
0.06340 |
0.83 |
| 27 |
14.20 |
0.361 |
158.4 |
0.10235 |
0.16345 |
0.04982 |
|
| 26 |
15.90 |
0.404 |
198.6 |
0.12819 |
0.13051 |
0.03978 |
1.3 |
| 25 |
17.90 |
0.455 |
251.6 |
0.16260 |
0.10289 |
0.03136 |
|
| 24 |
20.10 |
0.511 |
317.3 |
0.20508 |
0.08158 |
0.02486 |
2.1 |
| 23 |
22.60 |
0.574 |
401.1 |
0.25877 |
0.06465 |
0.01971 |
|
| 22 |
25.30 |
0.643 |
502.7 |
0.32472 |
0.05152 |
0.01570 |
5 |
| 21 |
28.50 |
0.724 |
637.9 |
0.41169 |
0.04064 |
0.01239 |
|
| 20 |
32.00 |
0.813 |
804.2 |
0.51912 |
0.03223 |
0.00982 |
7.5 |
| 19 |
35.90 |
0.912 |
1012.2 |
0.65325 |
0.02561 |
0.00781 |
|
| 18 |
40.30 |
1.020 |
1275.6 |
0.81713 |
0.02047 |
0.00624 |
10 |
| 17 |
45.30 |
1.150 |
1611.7 |
1.03869 |
0.01611 |
0.00491 |
|
| 16 |
50.80 |
1.290 |
2026.8 |
1.30698 |
0.01280 |
0.00390 |
13 |
| 15 |
57.10 |
1.450 |
2560.7 |
1.65130 |
0.01013 |
0.00309 |
|
| 14 |
64.10 |
1.630 |
3227.1 |
2.08672 |
0.00802 |
0.00244 |
17 |
| 13 |
72.00 |
1.830 |
4071.5 |
2.63022 |
0.00636 |
0.00194 |
|
| 12 |
80.80 |
2.050 |
5127.6 |
3.30064 |
0.00507 |
0.00154 |
23 |
| 11 |
90.70 |
2.300 |
6461.1 |
4.15476 |
0.00403 |
0.00123 |
|
| 10 |
101.90 |
2.600 |
8155.3 |
5.30929 |
0.00315 |
0.00096 |
33 |