California Fine Wire CompanyCopper Conversion Table California Fine Wire Company

WEIGHT

RESISTANCE @ 20 ºC

AWG

DIAMETER

(inches)

DIAMETER

(mm)

POUNDS

/1000ft

FEET

/lb

OHMS

/1000ft

OHMS

/lb
4/0 0.46 11.684 640.5 1.561 0.04901 7.65E-05
3/0 0.41 10.404 507.9 1.968 0.0618 0.000122
2/0 0.365 9.266 402.8 2.482 0.07793 0.000194
1/0 0.325 8.253 319.5 3.13 0.09827 0.000308
1 0.289 7.348 253.3 3.947 0.1239 0.000489
2 0.258 6.543 200.9 4.977 0.1563 0.000778
3 0.229 5.827 189.3 6.276 0.197 0.001237
4 0.204 5.189 126.4 7.914 0.2485 0.001966
5 0.182 4.62 100.2 9.98 0.3133 0.003127
6 0.162 4.115 79.46 12.58 0.3951 0.004972
7 0.144 3.665 63.02 15.87 0.4982 0.007905
8 0.128 3.264 49.98 20.01 0.6282 0.01257
9 0.114 2.906 39.63 25.23 0.7921 0.01999
10 0.102 2.588 31.43 31.82 0.9989 0.03178
11 0.091 2.305 24.92 40.12 1.26 0.05053
12 0.081 2.053 17.77 50.59 1.588 0.08035
13 0.072 1.828 15.68 63.8 2.003 0.1278
14 0.064 1.628 12.43 80.44 2.525 0.2032
15 0.057 1.45 9.858 101.4 3.184 0.323
16 0.051 1.291 7.818 127.9 4.016 0.5136
17 0.045 1.15 6.2 161.3 5.064 0.8167
18 0.04 1.024 4.917 203.4 6.385 1.299
19 0.036 0.912 3.899 256.5 8.051 2.065
20 0.032 0.812 3.092 323.4 10.15 3.283
21 0.0285 0.723 2.452 407.8 12.8 5.221
22 0.0253 0.644 1.945 514.2 16.14 8.3101
23 0.0226 0.573 1.842 648.2 20.36 13.2
24 0.0201 0.511 1.223 817.7 25.67 20.99
25 0.0179 0.455 0.969 1,031.00 32.37 33.37
26 0.0159 0.404 0.799 1,300.00 40.18 53.06
27 0.0142 0.361 0.61 1,639.00 51.47 84.37
28 0.0126 0.32 0.484 2,067.00 64.9 134.2
29 0.0113 0.286 0.384 2,607.00 81.83 213.3
30 0.01 0.256 0.304 3,287.00 103.2 339.2
31 0.0089 0.227 0.241 4,145.00 130.1 539.3