Copper Wire - Electrical Resistance vs. Gauge
Gauge, weight, circular mils and electrical resistance in copper wire.
Electrical resistance in copper wire:
For full table with Electrical Resistance and Weight - rotate the screen!
AWG Gauge * | Area (Circular Mils ) | Diameter ( mils , 1000th in) | Electrical Resistance (Ohms/1000 ft) | Weight (lb/1000 ft) | |
---|---|---|---|---|---|
at 77 oF (25 oC) | at 149 oF (65 oC) | ||||
0000 (4/0) | 212000 | 460 | 0.0500 | 0.057 | 641 |
000 (3/0) | 168000 | 410 | 0.0630 | 0.073 | 508 |
00 (2/0) | 133000 | 365 | 0.0795 | 0.092 | 403 |
0 (1/0) | 106000 | 325 | 0.100 | 0.116 | 319 |
1 | 83700 | 289 | 0.126 | 0.146 | 253 |
2 | 66400 | 258 | 0.159 | 0.184 | 201 |
3 | 52600 | 229 | 0.201 | 0.232 | 159 |
4 | 41700 | 204 | 0.253 | 0.292 | 126 |
5 | 33100 | 0.319 | 100 | ||
6 | 26300 | 162 | 0.403 | 0.465 | 79.5 |
7 | 20800 | 0.508 | 63.0 | ||
8 | 16500 | 128 | 0.641 | 0.739 | 50.0 |
9 | 13100 | 0.808 | 39.6 | ||
10 | 10400 | 102 | 1.02 | 1.18 | 31.4 |
11 | 8230 | 1.28 | 24.9 | ||
12 | 6530 | 81 | 1.62 | 1.87 | 19.8 |
13 | 5180 | 2.04 | 15.7 | ||
14 | 4110 | 64 | 2.58 | 2.97 | 12.4 |
15 | 3260 | 3.25 | 9.86 | ||
16 | 2580 | 51 | 4.09 | 4.73 | 7.82 |
17 | 2050 | 5.16 | 6.20 | ||
18 | 1620 | 40 | 6.51 | 7.51 | 4.92 |
19 | 1290 | 8.21 | 3.90 | ||
20 | 1020 | 32 | 10.4 | 11.9 | 3.09 |
21 | 810 | 13.1 | 2.45 | ||
22 | 642 | 25.3 | 16.5 | 19.0 | 1.94 |
23 | 509 | 20.8 | 1.54 | ||
24 | 404 | 20.1 | 26.2 | 30.2 | 1.22 |
25 | 320 | 33.0 | 0.970 | ||
26 | 254 | 15.9 | 41.6 | 48.0 | 0.769 |
27 | 202 | 52.5 | 0.610 | ||
28 | 160 | 12.6 | 66.2 | 76.4 | 0.484 |
29 | 127 | 83.4 | 0.384 | ||
30 | 101 | 10 | 105 | 121 | 0.304 |
31 | 79.7 | 133 | 0.241 | ||
32 | 63.2 | 8 | 167 | 193 | 0.191 |
33 | 50.1 | 211 | 0.152 | ||
34 | 39.8 | 6.3 | 266 | 307 | 0.120 |
35 | 31.6 | 335 | 0.095 | ||
36 | 25.0 | 5 | 423 | 488 | 0.076 |
37 | 19.8 | 533 | 0.060 | ||
38 | 15.7 | 4 | 673 | 776 | 0.048 |
39 | 12.5 | 848 | 0.038 | ||
40 | 9.9 | 3.1 | 1070 | 1230 | 0.020 |
*) solid strand
- 1 lb = 0.4536 kg
- 1 ft (foot) = 0.3048 m
American Wire Gauge ( AWG ) is a U.S. standard for wire conductor size. The "gauge" is related to the diameter of the wire.
Download and print Copper Wire - electrical resistance vs. temperature chart
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