# SWG to mm conversion

## SWG to mm conversion

We are offering Standard wire gauge (SWG) to mm and mm2 conversion calculator to make you learn how to convert.

1. SWG to mm conversion calculator
2. SWG calculation
3. SWG to mm conversion chart

## SWG to mm conversion calculator

Converts SWG to mm, check now!

[wire_SWG_to_mm_conversion_calculator]

## Wire cross sectional area calculation

Let’s assume that the n gauge wire with cross sectional area An in square millimeters (mm2) is totally equal to pi divided by the 4 times of the square of wire diameter d which is measured in millimeters (mm):

An (mm2) = (π/4)×dn2

SWGArea
(mm2)
Diameter
(mm)
7/0 126.6769 12.700
6/0 109.0921 11.786
5/0 94.5638 10.973
4/0 81.0732 10.160
3/0 70.1202 9.449
2/0 61.3643 8.839
0 53.1921 8.230
1 45.6037 7.620
2 38.5989 7.010
3 32.1780 6.401
4 27.2730 5.893
5 22.7735 5.385
6 18.6793 4.877
7 15.6958 4.470
8 12.9717 4.064
9 10.5071 3.658
10 8.3019 3.251
11 6.8183 2.946
12 5.4805 2.642
13 4.2888 2.337
14 3.2429 2.032
15 2.6268 1.829
16 2.0755 1.626
17 1.5890 1.422
18 1.1675 1.219
19 0.8107 1.016
20 0.6567 0.914
21 0.5189 0.813
22 0.3973 0.711
23 0.2919 0.610
24 0.2452 0.559
250.2027 0.5080
26 0.1642 0.4572
27 0.1363 0.4166
28 0.1110 0.3759
29 0.0937 0.3454
30 0.0779 0.3150
31 0.0682 0.2946
32 0.0591 0.2743
33 0.0507 0.2540
34 0.0429 0.2337
35 0.0358 0.2134
36 0.0293 0.1930
37 0.0234 0.1727
38 0.0182 0.1524
39 0.0137 0.1321
40 0.0117 0.1219
41 0.0098 0.1118
42 0.0081 0.1016
43 0.0066 0.0914
44 0.0052 0.0813
45 0.0040 0.0711
46 0.0029 0.0610
47 0.0020 0.0508
48 0.0013 0.0406
49 0.0007 0.0305
50 0.0005 0.0254