Online Calculators & Tools
Standard wire gauge (SWG) to mm and mm2 converison calculator, chart and how to convert.
The n gauge wire's cross sercional area Anin square millimeters (mm2) is equal to pi divided by 4 times the square wire diameter d in millimeters (mm):
An (mm2) = (π/4)×dn2
SWG # | Diameter (mm) | Area (mm2) |
---|---|---|
7/0 | 12.700 | 126.6769 |
6/0 | 11.786 | 109.0921 |
5/0 | 10.973 | 94.5638 |
4/0 | 10.160 | 81.0732 |
3/0 | 9.449 | 70.1202 |
2/0 | 8.839 | 61.3643 |
0 | 8.230 | 53.1921 |
1 | 7.620 | 45.6037 |
2 | 7.010 | 38.5989 |
3 | 6.401 | 32.1780 |
4 | 5.893 | 27.2730 |
5 | 5.385 | 22.7735 |
6 | 4.877 | 18.6793 |
7 | 4.470 | 15.6958 |
8 | 4.064 | 12.9717 |
9 | 3.658 | 10.5071 |
10 | 3.251 | 8.3019 |
11 | 2.946 | 6.8183 |
12 | 2.642 | 5.4805 |
13 | 2.337 | 4.2888 |
14 | 2.032 | 3.2429 |
15 | 1.829 | 2.6268 |
16 | 1.626 | 2.0755 |
17 | 1.422 | 1.5890 |
18 | 1.219 | 1.1675 |
19 | 1.016 | 0.8107 |
20 | 0.914 | 0.6567 |
21 | 0.813 | 0.5189 |
22 | 0.711 | 0.3973 |
23 | 0.610 | 0.2919 |
24 | 0.559 | 0.2452 |
25 | 0.5080 | 0.2027 |
26 | 0.4572 | 0.1642 |
27 | 0.4166 | 0.1363 |
28 | 0.3759 | 0.1110 |
29 | 0.3454 | 0.0937 |
30 | 0.3150 | 0.0779 |
31 | 0.2946 | 0.0682 |
32 | 0.2743 | 0.0591 |
33 | 0.2540 | 0.0507 |
34 | 0.2337 | 0.0429 |
35 | 0.2134 | 0.0358 |
36 | 0.1930 | 0.0293 |
37 | 0.1727 | 0.0234 |
38 | 0.1524 | 0.0182 |
39 | 0.1321 | 0.0137 |
40 | 0.1219 | 0.0117 |
41 | 0.1118 | 0.0098 |
42 | 0.1016 | 0.0081 |
43 | 0.0914 | 0.0066 |
44 | 0.0813 | 0.0052 |
45 | 0.0711 | 0.0040 |
46 | 0.0610 | 0.0029 |
47 | 0.0508 | 0.0020 |
48 | 0.0406 | 0.0013 |
49 | 0.0305 | 0.0007 |
50 | 0.0254 | 0.0005 |