Terminology » RF Basics » AWG to Metric Conversion Chart and Table

AWG to Metric Conversion Chart and Table

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metric

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wire size

cable

This page provides an AWG to Metric conversion chart and table. The table takes AWG as input and provides the corresponding cable diameter (in inches and mm) and cable cross-sectional area (in square mm) as outputs. Table 1 (below) shows the input and outputs needed to convert AWG to metric equivalents (inch, mm, and square mm).

This conversion is specifically for cables made of copper. The following equations can be used to convert AWG to metric units:

Cable Diameter, Dn (mm): 0.127 x 92^(36-n)/39
Cable or Wire Cross-Sectional Area, An (in square mm): (π/4) * Dn²
Cable Diameter, Dn (inch): 0.005 x 92^(36-n)/39

AWG to Metric Conversion Table

AWG	Diameter in inch	Diameter in mm	Area in mm²
0000	0.4600	11.6840	107.2193
000 (3/0)	0.4096	10.4049	85.0288
00 (2/0)	0.3648	9.2658	67.4309
0 (1/0)	0.3249	8.2515	53.4751
1	0.2893	7.3481	42.4077
2	0.2576	6.5437	33.6308
3	0.2294	5.8273	26.6705
4	0.2043	5.1894	21.1506
5	0.1819	4.6213	16.7732
6	0.1620	4.1154	13.3018
7	0.1443	3.6649	10.5488
8	0.1285	3.2636	8.3656
9	0.1144	2.9064	6.6342
10	0.1019	2.5882	5.2612
11	0.0907	2.3048	4.1723
12	0.0808	2.0525	3.3088
13	0.0720	1.8278	2.6240
14	0.0641	1.6277	2.0809
15	0.0571	1.4495	1.6502
16	0.0508	1.2908	1.3087
17	0.0453	1.1495	1.0378
18	0.0403	1.0237	0.8230
19	0.0359	0.9116	0.6527
20	0.0320	0.8118	0.5176
21	0.0285	0.7229	0.4105
22	0.0253	0.6438	0.3255
23	0.0226	0.5733	0.2582
24	0.0201	0.5106	0.2047
25	0.0179	0.4547	0.1624
26	0.0159	0.4049	0.1288
27	0.0142	0.3606	0.1021
28	0.0126	0.3211	0.0810
29	0.0113	0.2859	0.0642
30	0.0100	0.2546	0.0509
31	0.0089	0.2268	0.0404
32	0.0080	0.2019	0.0320
33	0.0071	0.1798	0.0254
34	0.0063	0.1601	0.0201
35	0.0056	0.1426	0.0160
36	0.0050	0.1270	0.0127
37	0.0045	0.1131	0.0100
38	0.0040	0.1007	0.0080
39	0.0035	0.0897	0.0063
40	0.0031	0.0799	0.0050

This chart is very useful as a quick calculator to convert AWG to metric equivalent units.

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