Cable Options
Dc Copper Cable Resistance Ohms per 1,000 Feet
Cross-Section at 20° C | Ohms per 1,000 Feet | ||||||||
Gage No. |
Diameter in Mills at 20° C |
Circular Mills |
Square Inches |
0° C (32° F) |
15° C (59° F) |
20° C (68° F) |
25° C (77° F) |
50° C (122° F) |
75° C (167° F) |
0000 | 460.0 | 211 600. | 0.1662 | 0.045 16 | 0.048 05 | 0.049 01 | 0.049 98 | 0.054 79 | 0.059 61 |
000 | 469.6 | 167 800. | .1318 | .056 95 | .060 59 | .061 80 | .063 02 | .069 09 | .075 16 |
00 | 364.8 | 133 100. | .1045 | .071 81 | .076 40 | .077 93 | .079 47 | .087 12 | .094 78 |
0 | 324.9 | 105 500. | .082 89 | 0.09055 | 0.09634 | 0.09827 | 0.1002 | 0.1099 | 0.1195 |
1 | 289.3 | 82 690. | .065 73 | 0.1142 | 0.1215 | 0.1239 | 0.1264 | 0.1385 | 0.1507 |
2 | 257.6 | 66 370. | .052 13 | 0.1440 | 0.1532 | 0.1563 | 0.1593 | 0.1747 | 0.1900 |
3 | 229.4 | 52 640. | .041 34 | 0.1816 | 0.1932 | 0.1970 | 0.2009 | 0.2203 | 0.2396 |
4 | 204.3 | 41 740. | .032 78 | 0.2289 | 0.2436 | 0.2485 | 0.2533 | 0.2778 | 0.3022 |
5 | 181.9 | 33 100. | .026 00 | 0.2887 | 0.3072 | 0.3133 | 0.3195 | 0.3502 | 0.3810 |
6 | 162.0 | 26 250. | .020 62 | 0.3640 | 0.3873 | 0.3951 | 0.4028 | 0.4416 | 0.4805 |
7 | 144.3 | 20 820. | .016 35 | 0.4590 | 0.4884 | 0.4982 | 0.5080 | 0.5569 | 0.6059 |
8 | 128.5 | 16 510. | .012 97 | 0.5788 | 0.6158 | 0.6282 | 0.6405 | 0.7023 | 0.7640 |
9 | 114.4 | 13 090. | .010 28 | 0.7299 | 0.7766 | 0.7921 | 0.8077 | 0.8855 | 0.9633 |
10 | 101.9 | 10 380. | .008 155 | 0.9203 | 0.9792 | 0.9989 | 1.018 | 1.117 | 1.215 |
11 | 90.74 | 8234. | .006 467 | 1.161 | 1.235 | 1.260 | 1.284 | 1.408 | 1.532 |
12 | 80.81 | 6530. | .005 129 | 1.463 | 1.557 | 1.588 | 1.619 | 1.775 | 1.931 |
13 | 71.96 | 5178. | .004 067 | 1.845 | 1.963 | 2.003 | 2.042 | 2.239 | 2.436 |
14 | 64.08 | 4107. | .003 225 | 2.327 | 2.476 | 2.525 | 2.575 | 2.823 | 3.071 |
15 | 57.07 | 3257. | .002 558 | 2.934 | 3.122 | 3.184 | 3.247 | 3.560 | 3.873 |
16 | 50.82 | 2583. | .002 028 | 3.700 | 3.937 | 4.016 | 4.094 | 4.489 | 4.884 |
17 | 45.26 | 2048. | .001 609 | 4.666 | 4.964 | 5.064 | 5.163 | 5.660 | 6.158 |
18 | 40.30 | 1624. | .001 276 | 5.883 | 6.260 | 6.385 | 6.51 | 7.138 | 7.765 |
19 | 35.89 | 1288. | .001 012 | 7.418 | 7.893 | 8.051 | 8.21 | 9.001 | 9.792 |
20 | 31.96 | 1022. | .000 802 3 | 9.355 | 9.953 | 10.15 | 10.35 | 11.35 | 12.35 |
21 | 28.46 | 810.1 | .000 636 3 | 11.80 | 12.55 | 12.80 | 13.05 | 14.31 | 15.57 |
22 | 25.35 | 642.4 | .000 504 6 | 14.87 | 15.83 | 16.14 | 16.46 | 18.05 | 19.63 |
23 | 22.57 | 509.5 | .000 400 2 | 18.76 | 19.96 | 20.36 | 20.76 | 22.76 | 24.76 |
24 | 20.10 | 404.0 | .000 317 3 | 23.65 | 25.16 | 25.67 | 26.17 | 28.70 | 31.22 |
25 | 17.90 | 320.4 | .000 251 7 | 29.82 | 31.73 | 32.37 | 33.00 | 36.18 | 39.36 |
26 | 15.94 | 254.1 | .000 199 6 | 37.61 | 40.01 | 40.81 | 41.62 | 45.63 | 49.64 |
27 | 14.20 | 201.5 | .000 158 3 | 47.42 | 50.45 | 51.47 | 52.48 | 57.53 | 62.59 |
28 | 12.64 | 159.8 | .000 125 5 | 59.80 | 63.62 | 64.90 | 66.17 | 72.55 | 78.93 |
29 | 11.26 | 126.7 | .000 099 53 | 75.40 | 80.23 | 81.83 | 83.44 | 91.48 | 99.52 |
30 | 10.03 | 100.5 | .000 078 94 | 95.08 | 101.2 | 103.2 | 105.2 | 115.4 | 125.5 |
31 | 8.928 | 79.70 | .000 062 60 | 119.9 | 127.6 | 130.1 | 132.7 | 145.5 | 158.2 |
32 | 7.950 | 63.21 | .000 049 64 | 151.2 | 160.9 | 164.1 | 167.3 | 183.4 | 199.5 |
33 | 7.080 | 50.13 | .000 039 37 | 190.6 | 202.8 | 206.9 | 211.0 | 231.3 | 251.6 |
34 | 6.305 | 39.75 | .000 031 22 | 240.4 | 255.8 | 260.9 | 266.0 | 291.7 | 317.3 |
35 | 5.615 | 31.52 | .000 024 76 | 303.1 | 322.5 | 329.0 | 335.5 | 367.8 | 400.1 |
36 | 5.000 | 25.00 | .000 019 64 | 382.2 | 406.7 | 414.8 | 423.0 | 463.7 | 504.5 |
37 | 4.453 | 19.83 | .000 015 57 | 482.0 | 512.8 | 523.1 | 533.4 | 584.8 | 636.2 |
38 | 3.965 | 15.72 | .000 021 35 | 607.8 | 646.7 | 659.6 | 672.6 | 737.4 | 802.2 |
39 | 3.531 | 12.47 | .000 009 793 | 766.4 | 815.4 | 831.8 | 848.1 | 929.8 | 1012. |
40 | 3.145 | 9.888 | .000 007 766 | 966.5 | 1028. | 1049. | 1069. | 1173. | 1276. |