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American Wire Gauge

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2011-12-7

American Wire Gauge (AWG) is a U.S. standard set of wire conductor sizes. The "gauge" is related to the diameter of the wire.

The AWG standard includes copper, aluminum and other wire materials. Typical household copper wiring is AWG number 12 or 14. Telephone wire is usually 22, 24, or 26. The higher the gauge number, the smaller the diameter and the thinner the wire.

The table below can be used to convert American Wire Gauge (AWG) to square mm cross sectional area.

American Wire Gauge (AWG)

 

AWG Inches mm      AWG Inches mm
50 0.00100 0.025   29 0.0113 0.287
49 0.00110 0.028   28 0.0126 0.320
48 0.00124 0.031   27 0.0142 0.361
47 0.00140 0.036   26 0.0159 0.404
46 0.00157 0.040   25 0.0179 0.455
45 0.00176 0.045   24 0.0201 0.511
44 0.0020 0.051   23 0.0226 0.574
43 0.0022 0.056   22 0.0253 0.643
42 0.0025 0.064   21 0.0285 0.724
41 0.0028 0.071   20 0.0320 0.813
40 0.0031 0.079   19 0.0359 0.912
39 0.0035 0.089   18 0.0403 1.02
38 0.0040 0.102   17 0.0453 1.15
37 0.0045 0.114   16 0.0508 1.29
36 0.0050 0.127   15 0.0571 1.45
35 0.0056 0.142   14 0.0641 1.63
34 0.0063 0.160   13 0.0720 1.83
33 0.0071 0.180   12 0.0808 2.05
32 0.0080 0.203   11 0.0907 2.30
31 0.0089 0.226   10 0.1019 2.60
30 0.0100 0.254        
             

 

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