AWG to Metric Conversion Chart

GUIDE: AWG to Metric Conversion Chart

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Reference and Sources:

This table gives closest equivalent size cross references between metric and American wire sizes. In Europe, wire sizes are expressed in cross sectional area in mm² and also as the number of strands of wires of a diameter expressed in mm. For example 7/0.2 means 7 strands of wire each 0.2mm diameter. This example has a cross sectional area of 0.22mm². In America, the commonest system is the AWG numbering scheme, where the numbers are applied not only to individual strands but also to equivalent size bunches of smaller strands. For example 24AWG could be made of 1 strands of 24AWG wire (1/24) or 7 strands of 32 AWG wire (7/32).

AWG Number Ø [Inch] Ø [mm] Ø [mm²]
6/0 = 000000 0.580 14.73 170.30
5/0 = 00000 0.517 13.12 135.10
4/0 = 0000 0.460 11.7 107
3/0 = 000 0.410 10.4 85.0
2/0 = 00 0.365 9.26 67.4
1/0 = 0 0.325 8.25 53.5
1 0.289 7.35 42.4
2 0.258 6.54 33.6
3 0.229 5.83 26.7
4 0.204 5.19 21.1
5 0.182 4.62 16.8
6 0.162 4.11 13.3
7 0.144 3.66 10.5
8 0.128 3.26 8.36
9 0.114 2.91 6.63
10 0.102 2.59 5.26
11 0.0907 2.30 4.17
12 0.0808 2.05 3.31
13 0.0720 1.83 2.62
14 0.0641 1.63 2.08
15 0.0571 1.45 1.65
16 0.0508 1.29 1.31
17 0.0453 1.15 1.04
18 0.0403 1.02 0.823
19 0.0359 0.912 0.653
20 0.0320 0.812 0.518
21 0.0285 0.723 0.410
22 0.0253 0.644 0.326
23 0.0226 0.573 0.258
24 0.0201 0.511 0.205
25 0.0179 0.455 0.162
26 0.0159 0.405 0.129
27 0.0142 0.361 0.102
28 0.0126 0.321 0.0810
29 0.0113 0.286 0.0642
30 0.0100 0.255 0.0509
31 0.00893 0.227 0.0404
32 0.00795 0.202 0.0320
33 0.00708 0.180 0.0254
34 0.00631 0.160 0.0201
35 0.00562 0.143 0.0160
36 0.00500 0.127 0.0127
37 0.00445 0.113 0.0100
38 0.00397 0.101 0.00797
39 0.00353 0.0897 0.00632
40 0.00314 0.0799 0.00501