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Copper Wire Size and Characteristics @ 100 Degrees F

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Reference: Handbook of Scientific and Engineering Data
Staff of Research and Education Association

Notes:
1. These resistance values are valid only for the parameters as given. Using conductors having coated strands, different stranding type, and, especially, other temperatures changes the resistance.
2. Formula for temperature change:

3. Conductors with compact and compressed stranding have about 9 percent and 3 percent, respectively,
smaller bare conductor diameters than those shown.

AWG Strand
Type		 Inches MM Circular
MIL
Area		 WEIGHT
LBS./
1000 FT.		 D.C. RESISTANCE
OHMS
1000 FT.
36 Solid .0050 0,127 25.0 .076 445.0
36 7/44 .006 0,152 28.0 .085 371.0
34 Solid .0063 0,160 39.7 .120 280.0
34 7/42 .0075 0,192 43.8 .132 237.0
32 Solid .008 0,203 67.3 .194 174.0
32 7/40 .008 0,203 67.3 .203 164.0
32 19/44 .009 0,229 76.0 .230 136.0
30 Solid .010 0,254 100.0 .300 113.0
30 7/38 .012 0,305 112.0 .339 103.0
30 19/42 .012 0,305 118.8 .359 87.3
28 Solid .013 0,330 159.0 .480 70.8
28 7/36 .015 0,381 175.0 .529 64.9
28 19/40 .016 0,406 182.6 .553 56.7
27 7/35 .018 0,457 219.5 .664 54.5
26 Solid .016 0,409 256.0 .770 43.6
26 10/36 .021 0,533 250.0 .757 41.5
26 19/38 .020 0,508 304.0 .920 34.4
26 7/34 .019 0,483 277.8 .841 37.3
24 Solid .020 0,511 404.0 1.22 27.3
24 7/32 .024 0,610 448.0 1.36 23.3
24 10/34 .023 0,582 396.9 1.20 26.1
24 19/36 .024 0,610 475.0 1.43 21.1
24 41/40 .023 0,582 384.4 1.16 25.6
22 Solid .025 0,643 640.0 1.95 16.8
22 7/30 .030 0,762 700.0 2.12 14.7
22 19/34 .031 0,787 754.1 2.28 13.7
22 26/36 .030 0,762 650.0 1.97 15.9
20 Solid .032 0,813 1020.0 3.10 10.5
20 7/28 .038 0,965 1111.0 3.49 10.3
20 10/30 .035 0,889 1000.0 3.03 10.3
20 19/32 .037 0,940 1216.0 3.70 8.6
20 26/34 .036 0,914 1031.9 3.12 10.0
20 41/36 .036 0,914 1025.0 3.10 10.0
18 Solid .040 1,020 1620.0 4.92 6.6
18 7/26 .048 1,219 1769.6 5.36 5.9
18 16/30 .047 1,194 1600.0 4.84 8.5
18 19/30 .049 1,245 1900.0 5.75 5.5
18 41/34 .047 1,194 1627.3 4.92 6.4
18 65/36 .047 1,194 1625.0 4.91 6.4
16 Solid .051 1,290 2580.0 7.81 4.2
16 7/24 .060 1,524 2828.0 8.56 3.7
16 65/34 .059 1,499 2579.9 7.81 4.0
16 26/30 .059 1,499 2600.0 7.87 4.0
16 19/29 .058 1,473 2426.3 7.35 4.3
16 105/36 .059 1,499 2625.0 7.95 4.0
14 Solid .064 1,630 4110.0 12.40 2.6
14 7/22 .073 1,854 4480.0 13.56 2.3
14 19/27 .073 1,854 3830.4 11.59 2.7
14 41/30 .073 1,854 4100.0 12.40 2.5
14 105/34 .073 1,854 4167.5 12.61 2.5
12 Solid .081 2,050 6,530.0 19.80 1.7
12 7/20 .096 2,438 7,168.0 21.69 1.5
12 19/25 .093 2,369 6,087.6 18.43 1.7
12 65/30 .095 2,413 6,500.0 19.66 1.8
12 165/34 .095 2,413 6,548.9 19.82 1.6
10 Solid .102 2,590 1,038.0 31.40 1.0
10 37/26 .115 2,921 9,353.6 28.31 1.1
10 49/27 .116 2,946 9,878.4 29.89 1.1
10 105/30 .116 2,946 10,530.0 31.76 0.98
8 49/25 .147 3,734 15,697.0 47.53 0.67
8 133/29 .147 3,734 16,984.0 51.42 0.61
8 655/36 .147 3,734 16,625.0 49.58 0.62
6 133/27 .184 4,674 26,813.0 81.14 0.47
6 259/30 .184 4,674 25,900.0 78.35 0.40
6 1050/36 .184 4,674 26,250.0 79.47 0.39
4 133/25 .232 5,898 42,613.0 129.01 0.24
4 259/27 .232 5,898 52,214.0 158.02 0.20
4 1666/36 .232 5,898 41,650.0 126.10 0.25
2 133/23 .292 7,417 67,936.0 205.62 0.15
2 259/26 .292 7,417 65,475.0 198.14 0.16
2 665/30 .292 7,417 66,500.0 201.16 0.16
2 2646/36 .292 7,417 66,150.0 200.28 0.16
1 163,195.9 .328 8,331 85,133.0 257.60 0.12
1 172,508.0 .328 8,331 82,984.0 251.20 0.13
1 817/30 .328 8,331 81,700.0 247.10 0.13
1 2109/34 .328 8,331 83,706.0 253.29 0.12
1/0 133/21 .368 9,347 108,036.0 327.05 0.096
1/0 259/24 .368 9,347 104,636.0 316.76 0.099
2/0 133/20 .414 10,516 136,192.0 412.17 0.077
2/0 259/23 .414 10,516 132,297.0 400.41 0.077
3/0 259/22 .464 11,786 163,195.0 501.70 0.062
3/0 427/24 .464 11,786 172,508.0 522.20 0.059
4/0 259/21 .522 13,259 210,386.0 638.88 0.049
4/0 427/23 .522 13,259 218,112.0 660.01 0.047

 
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