AWG To mm2 Chart + Calculator (0-40 AWG To mm2)

Both AWG and mm2 are measured for the size of the wire, either diameter (AWG) or cross-section (mm2).

AWG stands for American Wire Gauge and is directly connected with a diameter of a wire. From that diameter, you can calculate what the cross-section of the wire is. Basically, you convert AWG to mm2.

The AWG to mm2 formula is quite complex:

awg to mm2 formula

In practice, nobody uses this equation. We usually use two very simple resources:

  1. AWG to mm2 chart. This basically tells you how many mm2 is an AWG wire (cross-section).
  2. AWG to mm2 calculator. You insert the AWG wire size and the calculator will tell you how many mm2 is the cross-section of that AWG wire.
  3. Rules of thumb to convert AWG to mm2 easily. Example: If mm2 is doubled, the AWG increased by 3. 14 AWG wire has a 2.08 mm2 cross-section. An 11 AWG wire (AWG increased by 3) has a 4.17 mm2 cross-section; double that of 14 AWG.

To help you out, we have listed both the chart and the calculator below:

AWG To mm2 Chart

AWG Wire: mm2
0000 (4/0) AWG 107 mm2
000 (3/0) AWG 85.0 mm2
00 (2/0) AWG 67.4 mm2
0 (1/0) AWG 53.5 mm2
1 AWG 42.4 mm2
2 AWG 33.6 mm2
3 AWG 26.7 mm2
4 AWG 21.2 mm2
5 AWG 16.8 mm2
6 AWG 13.3 mm2
7 AWG 10.5 mm2
8 AWG 8.37 mm2
9 AWG 6.63 mm2
10 AWG 5.26 mm2
11 AWG 4.17 mm2
12 AWG 3.31 mm2
13 AWG 2.62 mm2
14 AWG 2.08 mm2
15 AWG 1.65 mm2
16 AWG 1.31 mm2
17 AWG 1.04 mm2
18 AWG 0.823 mm2
19 AWG 0.653 mm2
20 AWG 0.518 mm2
21 AWG 0.410 mm2
22 AWG 0.326 mm2
23 AWG 0.258 mm2
24 AWG 0.205 mm2
25 AWG 0.162 mm2
26 AWG 0.129 mm2
27 AWG 0.102 mm2
28 AWG 0.0810 mm2
29 AWG 0.0642 mm2
30 AWG 0.0509 mm2
31 AWG 0.0404 mm2
32 AWG 0.0320 mm2
33 AWG 0.0254 mm2
34 AWG 0.0201 mm2
35 AWG 0.0160 mm2
36 AWG 0.0127 mm2
37 AWG 0.0100 mm2
38 AWG 0.00797 mm2
39 AWG 0.00632 mm2
40 AWG 0.00501 mm2

This chart is very simple to use. Just find out the AWG wire and see how many mm2 cross-section it has.

Example: 10 AWG has a cross-section of 5.26 mm2.

An even simpler way to convert AWG to mm2 is to use this AWG to mm2 calculator:

AWG To mm2 Calculator

Just insert AWG and you will get the mm2:

Hopefully, you can use the chart and calculator to figure out how many mm2 does an AWG gauge wire has.

You can further consult the AWG wire ampacity chart here to look at how many amps can different AWG wires carry.

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