Copper Wire Weight

When buying magnet wire for your applications, you must determine how much current you need your wire to handle. View TEMCo's magnet wire current chart below to make sure you buy the right wire for your needs.


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Why Choose Copper Wire?

Only silver has a higher conductivity rating than copper, but it is considered a precious metal. Copper, being a non-precious metal, still provides high conductivity at a much lower price.

Aluminum wire is also frequently used a conductor, but it has a lower conductivity than copper, making it, for the most part, less efficient. Aluminum wire has to have a cross section 1.6 times larger than an equivalent copper wire in order to create the same current capability as an equivalent copper wire. This also makes copper wire less cumbersome and bulky than aluminum wire.

Another advantage that copper has over aluminum is its ability to survive extreme conditions since it is 300% more durable.


Copper Wire Specifications


Insulation Build

Copper wire weight is affected by insulation build.

The insulation can be either be plastic, rubber or, in the case of magnet wire, a thin varnish or a yarn.

Insulation is meant to protect bare copper wire from coming in contact with itself while it is being wound. The turns of bare wires, which are not insulated, would short out if they were to come in contact with one another. Insulation acts as a buffer between the turns and is necessary for wires that are wound hundreds, possibly thousands, of times.

The measurement of the insulation is known as the build. Subtract the diameter of the bare wire from the total diameter of the insulated wire and this will give you the measurement of the build.

Single, heavy, triple or quadruple builds are available. Single and heavy are the most common, and they will have a slight effect on copper wire weight.


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Copper Wire Weight

Standardized specification for solid, round wire are based on American wire gauge (AWG), which is used mainly in the United States and Canada. The wire gauge will provide characteristics for the wire, including the diameter, current and weight. Standard AWG numbers start at 0000 and end at 40. Wires with a gauge higher than 40 will be so small they will have theoretical diameters.

Wire is calculated by weight, rather than length, simply for accuracy. Calculating copper wire weight is a quicker and simpler process than measuring miles of wire.

Copper wire weight decreases as the wire gauge goes up. A 0000 gauge wire will weigh 640.5005 lbs per 1000 feet, while a 40 gauge wire weights 0.0299 lbs per 1000 feet.



See the following chart for standard copper wire weight information.


Gauge Bare Copper Wire
Weight(lbs/1000 ft)
Single-build Copper
Wire Weight((lbs/1000 ft)
Heavy-build Copper
ire Weight(lbs/1000 ft)
0000 640.5005 n/a n/a
000 507.94 n/a n/a
00 402.8148 n/a n/a
0 319.4466 n/a n/a
1 253.3327 n/a n/a
2 200.902 n/a n/a
3 159.3225 n/a n/a
4 126.3485 n/a 127
5 100.1989 n/a 100.8
6 79.4613 n/a 79.99
7 63.0157 n/a 63.5
8 49.9737 50.18 50.4
9 39.631 39.8 39.99
10 31.4288 31.6 31.76
11 24.9242 25.05 25.2
12 19.7658 19.89 20.02
13 15.675 15.81 15.92
14 12.4308 12.54 12.64
15 9.8581 9.955 10.04
16 7.8178 7.888 7.959
17 6.1998 6.278 6.337
18 4.9167 4.973 5.024
19 3.8991 3.949 3.993
20 3.0921 3.144 3.18
21 2.4522 2.494 2.526
22 1.9447 1.968 1.994
23 1.5422 1.573 1.596
24 1.223 1.246 1.265
25 0.9699 0.9887 1.005
26 0.7692 0.7812 0.7949
27 0.61 0.6247 0.637
28 0.4837 0.4933 0.5031
29 0.3836 0.3969 0.4056
30 0.3042 0.3114 0.3192
31 0.2413 0.2467 0.2532
32 0.1913 0.1995 0.2046
33 0.1517 0.1574 0.1615
34 0.1203 0.1241 0.1275
35 0.0954 0.09821 0.10102
36 0.0757 0.07836 0.08077
37 0.06 0.0635 0.06542
38 0.0476 0.05019 0.05192
39 0.0377 0.03863 0.03977
40 0.0299 0.03031 0.03133


Buy TEMCo Copper Wire

Looking for copper wire for your application? Our standard wire line is solid dual-insulated magnet wire. For other wire types, such as aluminum, plastic or rubber insulated, bare or stranded wire, call us for a quote.

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