AWG Size Chart

The table below shows the AWG wire size and the equivalent diameter in both inches (in) and mm as well as cross-sectional area in cmils, kcmils and sq.mm.

To find equivalent wire sizes for various AWG sizes

Using the table, for example, 0000 (4/0) AWG has an equivalent diameter of 0.46 inches or 11.684 mm. In terms of cross-sectional area,

0000 (4/0) is equivalent to 211,600 cmils, 212 kcmil or 107 mm2 (sq.mm)

AWG	Diameter of wire	Diameter of wire	Area	Area	Area
	in	mm	cmils	kcmil	sq.mm
0000 (4/0)	0.46	11.684	211,600	212	107
000 (3/0)	0.4096	10.405	167,772	168	85
00 (2/0)	0.3648	9.266	133,079	133	67.4
0 (1/0)	0.3249	8.251	105,560	106	53.5
1	0.2893	7.348	83,694	83.7	42.4
2	0.2576	6.544	66,358	66.4	33.6
3	0.2294	5.827	52,624	52.6	26.7
4	0.2043	5.189	41,738	41.7	21.2
5	0.1819	4.621	33,088	33.1	16.8
6	0.162	4.115	26,244	26.3	13.3
7	0.1443	3.665	20,822	20.8	10.5
8	0.1285	3.264	16,512	16.5	8.37
9	0.1144	2.906	13,087	13.1	6.63
10	0.1019	2.588	10,384	10.4	5.26
11	0.0907	2.305	8,226	8.23	4.17
12	0.0808	2.053	6,529	6.53	3.31
13	0.072	1.828	5,184	5.18	2.62
14	0.0641	1.628	4,109	4.11	2.08
15	0.0571	1.45	3,260	3.26	1.65
16	0.0508	1.291	2,581	2.58	1.31
17	0.0453	1.15	2,052	2.05	1.04
18	0.0403	1.024	1,624	1.62	0.823
19	0.0359	0.912	1,289	1.29	0.653
20	0.032	0.812	1,024	1.02	0.518
21	0.0285	0.723	812	0.81	0.41
22	0.0253	0.644	640	0.642	0.326
23	0.0226	0.573	511	0.509	0.258
24	0.0201	0.511	404	0.404	0.205
25	0.0179	0.455	320	0.32	0.162
26	0.0159	0.405	253	0.254	0.129
27	0.0142	0.361	202	0.202	0.102
28	0.0126	0.321	159	0.16	0.081
29	0.0113	0.286	128	0.127	0.0642
30	0.01	0.255	100	0.101	0.0509
31	0.00893	0.227	80	0.0797	0.0404
32	0.00795	0.202	63	0.0632	0.032
33	0.00708	0.18	50	0.0501	0.0254
34	0.0063	0.16	40	0.0398	0.0201
35	0.00561	0.143	31	0.0315	0.016
36	0.005	0.127	25	0.025	0.0127
37	0.00445	0.113	20	0.0198	0.01
38	0.00397	0.101	16	0.0157	0.00797
39	0.00353	0.0897	12	0.0125	0.00632
40	0.00314	0.0799	10	0.00989	0.00501

How to use the table

The higher the AWG number, the smaller the wire size (diameter). For example, 1 AWG size is larger than 2 AWG. As you move down the AWG column in the table above, the wire becomes thinner.

Related questions

# 1. What is bigger 2 AWG or 4 AWG?

2 AWG is bigger than 4 AWG.

# 2. What size wire is bigger 1 0 or 2 0?

2/0 AWG is bigger than 1/0 AWG. Similarly:

0000 (4/0) is thicker than 000 (3/0)
000 (3/0) is thicker than 00 (2/0)
00 (2/0) is thicker than 0 (1/0).

Note:

AWG wire size 1 with a diameter of 0.2893 in has an area equivalent to 83,694 cmils. This refers to solid copper wire