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What is wire gauge?
Wire gauge is a measuring system to denote the diameter (thickness) of wire. The system goes from 0000 through to 40. The larger the wire gauge number, the thinner the wire.
The chart below shows the Wire Gauge Chart with diameter conversions into inches and millimetres. We have only gone to 32 as we do not supply wire in smaller diameters.
Wire Gauge | Diameter in mm | Diameter in inches |
0000 | 11.68 | 0.46 |
000 | 10.40 | 0.41 |
00 | 9.27 | 0.36 |
0 | 8.25 | 0.32 |
1 | 7.35 | 0.29 |
2 | 6.54 | 0.26 |
3 | 5.83 | 0.23 |
4 | 5.19 | 0.20 |
5 | 4.62 | 0.18 |
6 | 4.11 | 0.16 |
7 | 3.67 | 0.14 |
8 | 3.26 | 0.13 |
9 | 2.91 | 0.114 |
10 | 2.59 | 0.102 |
11 | 2.30 | 0.091 |
12 | 2.05 | 0.081 |
13 | 1.83 | 0.072 |
14 | 1.63 | 0.064 |
15 | 1.45 | 0.057 |
16 | 1.29 | 0.051 |
17 | 1.15 | 0.045 |
18 | 1.02 | 0.040 |
19 | 0.91 | 0.036 |
20 | 0.81 | 0.032 |
21 | 0.72 | 0.029 |
22 | 0.65 | 0.025 |
23 | 0.57 | 0.023 |
24 | 0.51 | 0.020 |
25 | 0.45 | 0.018 |
26 | 0.40 | 0.016 |
27 | 0.36 | 0.014 |
28 | 0.32 | 0.013 |
29 | 0.29 | 0.011 |
30 | 0.25 | 0.010 |
31 | 0.23 | 0.009 |
32 | 0.20 | 0.008 |