|
Wire Gauge Conversion & Resistance Chart
The diameter information in the table applies to single, round, solid wires and assumes
DC or AC frequencies equal to or less than 60 Hz. It does not take skin effect into account.
American wire gauge (AWG) is also known (is the same) as the Brown & Sharpe wire gauge.
Values are stated in approximate decimals of an inch, excluding the metric numbers. As a number of
gauges are in use for various shapes and metals, it is advisable to state the thickness in thousands
when specifying the gauge number.
| Table Key: |
| AWG |
American Wire Gauge |
| B&S |
Brown & Sharpe |
| SWG |
Imperial Standard Wire Gauge (also known as British Standard Gauge) |
| SWG |
American Wire Number |
AWG or B&S Diameter |
AWG Metric Diameter |
Copper Resistance |
| (Inches) |
(Gauge) |
(Inches) |
(mm) |
(Ω/km) |
(Ω/kFT) |
| 0.5 |
0000000 (7/0) |
... |
... |
|
|
| 0.464 |
000000 (6/0) |
0.58 |
... |
|
|
| 0.432 |
00000 (5/0) |
0.5165 |
... |
|
|
| 0.4 |
0000 (4/0) |
0.46 |
11.684 |
0.1608 |
0.04901 |
| 0.372 |
000 (3/0) |
0.409642 |
10.404 |
0.2028 |
0.0618 |
| 0.348 |
00 (2/0) |
0.364796 |
9.266 |
0.2557 |
0.07793 |
| 0.324 |
0 (1/0) |
0.324861 |
8.252 |
0.3224 |
0.09827 |
| 0.3 |
1 |
0.289297 |
7.348 |
0.4066 |
0.1239 |
| 0.276 |
2 |
0.257627 |
6.543 |
0.5127 |
0.1563 |
| 0.252 |
3 |
0.229423 |
5.827 |
0.6465 |
0.197 |
| 0.232 |
4 |
0.2043 |
5.189 |
0.8152 |
0.2485 |
| 0.212 |
5 |
0.1819 |
4.621 |
1.028 |
0.3133 |
| 0.192 |
6 |
0.162 |
4.115 |
1.296 |
0.3951 |
| 0.176 |
7 |
0.1443 |
3.665 |
1.634 |
0.4982 |
| 0.16 |
8 |
0.1285 |
3.264 |
2.061 |
0.6282 |
| 0.144 |
9 |
0.1144 |
2.906 |
2.599 |
0.7921 |
| 0.128 |
10 |
0.1019 |
2.588 |
3.277 |
0.9989 |
| 0.116 |
11 |
0.0907 |
2.304 |
4.132 |
1.26 |
| 0.104 |
12 |
0.0808 |
2.052 |
5.211 |
1.588 |
| 0.092 |
13 |
0.072 |
1.829 |
6.571 |
2.003 |
| 0.08 |
14 |
0.0641 |
1.628 |
8.286 |
2.525 |
| 0.072 |
15 |
0.0571 |
1.45 |
10.45 |
3.184 |
| 0.064 |
16 |
0.0508 |
1.291 |
13.17 |
4.016 |
| 0.056 |
17 |
0.0453 |
1.15 |
16.61 |
5.064 |
| 0.048 |
18 |
0.0403 |
1.024 |
20.95 |
6.385 |
| 0.04 |
19 |
0.0359 |
0.9119 |
26.42 |
8.051 |
| 0.036 |
20 |
0.032 |
0.8128 |
33.31 |
10.15 |
| 0.032 |
21 |
0.0285 |
0.7239 |
42 |
12.8 |
| 0.028 |
22 |
0.0253 |
0.6426 |
52.96 |
16.14 |
| 0.024 |
23 |
0.0226 |
0.574 |
66.79 |
20.36 |
| 0.022 |
24 |
0.0201 |
0.5106 |
84.22 |
25.67 |
| 0.02 |
25 |
0.0179 |
0.4547 |
106.2 |
32.37 |
| 0.018 |
26 |
0.0159 |
0.4038 |
133.9 |
40.81 |
| 0.0164 |
27 |
0.0142 |
0.3606 |
168.9 |
51.47 |
| 0.0148 |
28 |
0.0126 |
0.32 |
212.9 |
64.9 |
| 0.0136 |
29 |
0.0113 |
0.287 |
268.5 |
81.84 |
| 0.0124 |
30 |
0.01 |
0.254 |
338.6 |
103.2 |
| 0.0116 |
31 |
0.0089 |
0.2261 |
426.9 |
130.1 |
| 0.0108 |
32 |
0.008 |
0.2032 |
538.3 |
164.1 |
| 0.01 |
33 |
0.0071 |
0.1803 |
678.8 |
206.9 |
| 0.0092 |
34 |
0.0063 |
0.1601 |
856 |
260.9 |
| 0.0084 |
35 |
0.0056 |
0.1422 |
1079 |
329 |
| 0.0076 |
36 |
0.005 |
0.127 |
1361 |
414.8 |
| 0.0068 |
37 |
0.0045 |
0.1143 |
1716 |
523.1 |
| 0.006 |
38 |
0.004 |
0.1016 |
2164 |
659.6 |
| 0.0052 |
39 |
0.0035 |
0.0889 |
2729 |
831.8 |
| 0.0048 |
40 |
0.0031 |
0.0787 |
3441 |
1049 |
| 0.0044 |
41 |
0.0028 |
0.0711 |
|
|
| 0.004 |
42 |
0.0025 |
0.0635 |
|
|
| 0.0036 |
43 |
0.0022 |
0.0559 |
|
|
| 0.0032 |
44 |
0.002 |
0.0508 |
|
|
| 0.0028 |
45 |
0.0018 |
0.0457 |
|
|
| 0.0024 |
46 |
0.0016 |
0.0406 |
|
|
| 0.002 |
47 |
0.0014 |
0.035 |
|
|
| 0.0016 |
48 |
0.0012 |
0.0305 |
|
|
| 0.0012 |
49 |
0.0011 |
0.0279 |
|
|
| 0.001 |
50 |
0.001 |
0.0254 |
|
|
| ... |
51 |
0.00088 |
0.0224 |
|
|
| ... |
52 |
0.00078 |
0.0198 |
|
|
| ... |
53 |
0.0007 |
0.0178 |
|
|
| ... |
54 |
0.00062 |
0.0158 |
|
|
| ... |
55 |
0.00055 |
0.014 |
|
|
| ... |
56 |
0.00049 |
0.0124 |
|
|
|
