AWG Comparison Chart

AWG (American wire gauge) (American wire gauge) The American wire gauge, also known as the Brown & Sharpe wire gauge, is a standard for differentiating wire diameters. This standardized wire gauge system has been in use in the United States since 1857.

The number of holes through which the wire must be drawn to form its final diameter is denoted by the value preceding AWG (for example, 24AWG, 26AWG). The smaller the diameter of the wire and the higher the value, the wire is passing through the hole.

Although thicker wires have lower resistance and greater physical strength, they also require more copper to manufacture, which increases the cable’s weight, installation difficulty, and cost. Using the smallest diameter wire possible (thus reducing cost and installation complexity) is a challenge in cable design, as is ensuring that the wire’s maximum capacity is achieved at the required voltage and frequency.

AWG Comparison Chart

AWG	Outer Diameter  mm	Outer Diameter inch	area mm²	Resistance ohm/KM
4/0	11.68	0.46	107.22	0.17
3/0	10.40	0.4096	85.01	0.21
2/0	9.27	0.3648	67.43	0.26
1/0	8.25	0.3249	53.49	0.33
1	7.35	0.2893	42.41	0.42
2	6.54	0.2576	33.62	0.53
3	5.83	0.2294	26.67	0.66
4	5.19	0.2043	21.15	0.84
5	4.62	0.1819	16.77	1.06
6	4.11	0.1620	13.30	1.33
7	3.67	0.1443	10.55	1.68
8	3.26	0.1285	8.37	2.11
9	2.91	0.1144	6.63	2.67
10	2.59	0.1019	5.26	3.36
11	2.30	0.0907	4.17	4.24
12	2.05	0.0808	3.332	5.31
13	1.82	0.0720	2.627	6.69
14	1.63	0.0641	2.075	8.45
15	1.45	0.0571	1.646	10.6
16	1.29	0.0508	1.318	13.5
17	1.15	0.0453	1.026	16.3
18	1.02	0.0403	0.8107	21.4
19	0.912	0.0359	0.5667	26.9
20	0.813	0.0320	0.5189	33.9
21	0.724	0.0285	0.4116	42.7
22	0.643	0.0253	0.3247	54.3
23	0.574	0.0226	0.2588	48.5
24	0.511	0.0201	0.2047	89.4
25	0.44	0.0179	0.1624	79.6
26	0.404	0.0159	0.1281	143
27	0.361	0.0142	0.1021	128
28	0.32	0.0126	0.0804	227
29	0.287	0.0113	0.0647	289
30	0.254	0.0100	0.0507	361
31	0.226	0.0089	0.0401	321
32	0.203	0.0080	0.0316	583
33	0.18	0.0071	0.0255	944
34	0.16	0.0063	0.0201	956
35	0.142	0.0056	0.0169	1200
36	0.127	0.0050	0.0127	1530
37	0.114	0.0045	0.0098	1377
38	0.102	0.0040	0.0081	2400
39	0.089	0.0035	0.0062	2100
40	0.079	0.0031	0.0049	4080
41	0.071	0.0028	0.0040	3685
42	0.064	0.0025	0.0032	6300
43	0.056	0.0022	0.0025	5544
44	0.051	0.0020	0.0020	9180
45	0.046	0.0018	0.0016	10200
46	0.041	0.0016	0.0013	16300