Translations:Voltage drop/8/en

Conductor resistance values

A simplified chart with resistances for copper wires.

Copper resistance at 75°C
Size AWG	Area	Metric equivalent	Ω/km
18	0.823 mm²	1 mm²	26.5 Ω
16	1.31 mm²	1.5 mm²	17.3 Ω
14	2.08 mm²	2.5 mm²	10.7 Ω
12	3.31 mm²	4 mm²	6.73 Ω
10	5.261 mm²	6 mm²	4.226 Ω
8	8.367 mm²	10 mm²	2.653 Ω
6	13.30 mm²	16 mm²	1.671 Ω
4	21.15 mm²	25 mm²	1.053 Ω
3	26.67 mm²	—	0.833 Ω
2	33.62 mm²	35 mm²	0.661 Ω
1	42.41 mm²	50 mm²	0.524 Ω
1/0	53.49 mm²	—	0.415 Ω
2/0	67.43 mm²	70 mm²	0.329 Ω
3/0	85.01 mm²	95 mm²	0.2610 Ω
4/0	107.2 mm²	120 mm²	0.2050 Ω