This wire resistance chart breaks down the resistance of copper wire by American Wire Gauge (AWG), making it easier to compare how resistance changes as conductors get larger or smaller. A wire resistance gauge like AWG is based on conductor diameter, so each step in gauge corresponds to a known change in cross-sectional area and, in turn, resistance. For example, values such as AWG 4 copper resistance in ohms per 1,000 feet or per meter are commonly referenced when sizing feeders, motor leads, and grounding conductors, while very large sizes like 4/0 AWG copper resistance per meter are critical in high-current industrial applications.
| AWG | Area (Circular Mils) |
Diameter (mils) |
Electrical Resistance (Ohms/1000 ft) |
Electrical Resistance (Ohms/km) |
Weight (lb/1000 ft) |
Weight (kg/km) |
||
|---|---|---|---|---|---|---|---|---|
| 77°F (25°C) | 149°F (65°C) | 77°F (25°C) | 149°F (65°C) | |||||
| 0000 (4/0) | 211,600 | 460.0 | 0.0490 | 0.0576 | 0.161 | 0.189 | 640.5 | 953 |
| 000 (3/0) | 167,800 | 409.6 | 0.0618 | 0.0727 | 0.203 | 0.238 | 507.9 | 756 |
| 00 (2/0) | 133,100 | 364.8 | 0.0779 | 0.0917 | 0.256 | 0.301 | 402.8 | 600 |
| 0 (1/0) | 105,500 | 324.9 | 0.0983 | 0.1156 | 0.323 | 0.379 | 319.5 | 476 |
| 1 | 83,690 | 289.3 | 0.1239 | 0.1458 | 0.407 | 0.478 | 253.5 | 377 |
| 2 | 66,370 | 257.6 | 0.1563 | 0.1839 | 0.513 | 0.603 | 200.9 | 299 |
| 3 | 52,630 | 229.4 | 0.1970 | 0.2318 | 0.646 | 0.760 | 159.3 | 237 |
| 4 | 41,740 | 204.3 | 0.2485 | 0.2924 | 0.815 | 0.959 | 126.4 | 188 |
| 5 | 33,100 | 181.9 | 0.3133 | 0.3686 | 1.028 | 1.209 | 100.2 | 149 |
| 6 | 26,250 | 162.0 | 0.3951 | 0.4648 | 1.296 | 1.525 | 79.5 | 118 |
| 7 | 20,820 | 144.3 | 0.4982 | 0.5861 | 1.634 | 1.923 | 63.0 | 93.8 |
| 8 | 16,510 | 128.5 | 0.6282 | 0.7390 | 2.061 | 2.425 | 50.0 | 74.4 |
| 9 | 13,090 | 114.4 | 0.7921 | 0.9317 | 2.599 | 3.057 | 39.6 | 59.0 |
| 10 | 10,380 | 101.9 | 0.9989 | 1.175 | 3.277 | 3.855 | 31.4 | 46.8 |
| 11 | 8,234 | 90.7 | 1.260 | 1.482 | 4.132 | 4.862 | 24.9 | 37.1 |
| 12 | 6,530 | 80.8 | 1.588 | 1.868 | 5.211 | 6.129 | 19.8 | 29.4 |
| 13 | 5,178 | 72.0 | 2.003 | 2.355 | 6.571 | 7.726 | 15.7 | 23.3 |
| 14 | 4,107 | 64.1 | 2.525 | 2.970 | 8.286 | 9.744 | 12.4 | 18.5 |
| 15 | 3,257 | 57.1 | 3.184 | 3.745 | 10.45 | 12.29 | 9.86 | 14.7 |
| 16 | 2,583 | 50.8 | 4.016 | 4.725 | 13.17 | 15.50 | 7.82 | 11.6 |
| 17 | 2,048 | 45.3 | 5.064 | 5.957 | 16.62 | 19.54 | 6.20 | 9.23 |
| 18 | 1,624 | 40.3 | 6.385 | 7.511 | 20.95 | 24.64 | 4.92 | 7.32 |
| 19 | 1,288 | 35.9 | 8.051 | 9.471 | 26.42 | 31.07 | 3.90 | 5.80 |
| 20 | 1,022 | 32.0 | 10.15 | 11.94 | 33.31 | 39.16 | 3.09 | 4.60 |
| 21 | 810.1 | 28.5 | 12.80 | 15.06 | 42.00 | 49.40 | 2.45 | 3.65 |
| 22 | 642.4 | 25.3 | 16.14 | 19.00 | 52.96 | 62.33 | 1.95 | 2.90 |
| 23 | 509.5 | 22.6 | 20.36 | 23.96 | 66.79 | 78.59 | 1.54 | 2.29 |
| 24 | 404.0 | 20.1 | 25.67 | 30.21 | 84.22 | 99.11 | 1.22 | 1.82 |
| 25 | 320.4 | 17.9 | 32.37 | 38.09 | 106.2 | 125.0 | 0.970 | 1.44 |
| 26 | 254.1 | 15.9 | 40.81 | 48.03 | 133.9 | 157.6 | 0.769 | 1.14 |
| 27 | 201.5 | 14.2 | 51.47 | 60.56 | 168.9 | 198.7 | 0.610 | 0.908 |
| 28 | 159.8 | 12.6 | 64.90 | 76.37 | 212.9 | 250.5 | 0.484 | 0.720 |
| 29 | 126.7 | 11.3 | 81.83 | 96.28 | 268.5 | 316.0 | 0.384 | 0.571 |
| 30 | 100.5 | 10.0 | 103.2 | 121.4 | 338.6 | 398.4 | 0.304 | 0.453 |
| 31 | 79.70 | 8.93 | 130.1 | 153.1 | 427.0 | 502.3 | 0.241 | 0.359 |
| 32 | 63.21 | 7.95 | 164.1 | 193.1 | 538.3 | 633.4 | 0.191 | 0.285 |
| 33 | 50.13 | 7.08 | 206.9 | 243.5 | 678.8 | 798.9 | 0.152 | 0.226 |
| 34 | 39.75 | 6.31 | 260.9 | 307.1 | 856.0 | 1007 | 0.120 | 0.179 |
| 35 | 31.52 | 5.61 | 329.0 | 387.2 | 1079 | 1271 | 0.0954 | 0.142 |
| 36 | 25.00 | 5.00 | 414.8 | 488.2 | 1361 | 1602 | 0.0757 | 0.113 |
| 37 | 19.83 | 4.45 | 523.1 | 615.6 | 1716 | 2020 | 0.0600 | 0.0893 |
| 38 | 15.72 | 3.97 | 659.6 | 776.1 | 2164 | 2546 | 0.0476 | 0.0708 |
| 39 | 12.47 | 3.53 | 831.8 | 979.0 | 2729 | 3212 | 0.0377 | 0.0561 |
| 40 | 9.888 | 3.15 | 1049 | 1235 | 3441 | 4049 | 0.0299 | 0.0445 |
MISUMI USA carries a wide range of industrial manufacturing components – including Control and Instrumentation Cables– for your next project or machine fix. If you have any questions about measurement or sizing for your AWG needs, feel free to connect with our product experts, and engineers. Also, if you are looking for more insights be sure to check out our other blog articles, including: AMP Table for AWG, AWG Size Chart, and more.
Author: Scott Bredemann | Updated: 1/22/2026
Disclaimer:
The content on this webpage is for informational purposes only. MISUMI makes no guarantees, expressed or implied, regarding the accuracy, completeness, or validity of the information. Performance parameters, tolerances, designs, materials, or processes should not be assumed to reflect third-party suppliers’ or manufacturers’ deliverables within MISUMI’s network. Buyers are responsible for specifying their part requirements.