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American Wire Gauge (AWG): Diameter in Inches

American wire gauge (AWG), also known as the Brown & Sharpe wire gauge, is a standardized wire gauge system used since 1857 predominantly in North America for the diameters of round, solid, nonferrous, electrically conducting wire. The cross-sectional area of each gauge is an important factor for determining its current-carrying capacity.

Increasing gauge numbers denotes decreasing wire diameters.

The AWG tables are for a single, solid, round conductor. The AWG of a stranded wire is determined by the cross-sectional area of the equivalent solid conductor. Because there are also small gaps between the strands, a stranded wire will always have a slightly larger overall diameter than a solid wire with the same AWG.

Also see:
Recommended Power, Ground, and Speaker Cable Sizes
GaugeDiameter
000000.5800
00000.5165
0000.4600
000.4096
00.3648
0.3249
1.2893
2.2576
3.2294
4.2043
5.1819
6.1620
 
GaugeDiameter
7.1443
8.1285
9.1144
10.1019
11.0907
12.0808
13.0719
14.0641
15.0571
16.0508
17.0453
18.0403
GaugeDiameter
19.0359
20.0319
21.0285
22.0253
23.0226
24.0201
25.0179
26.0159
27.0142
28.0126
29.0113
 
GaugeDiameter
30.0100
31.0089
32.0079
33.0071
34.0063
35.0056
36.0050
37.0045
38.0040
39.0035
40.0031
Mobile Electronics Basics:
Diodes
Glossary of Terms and Definitions
Ohm's Law
Recommended Books & DVD's
Recommended Wire Sizes
Relays
Resistors
Tools and Equipment


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