AWG (American Wire Gauge) to MM2 Conversion

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AWG (American Wire Gauge) to MM2(Millimeters squared) Conversion, Diameter, DC Resistance

AWG(American Wire Gauge) is short for American Wire Gauge. AWG value is a function of Wire thickness in inches. The following table compares AWG with metric and British units. 4/0 indicates 0000, 3/0 indicates 000, 2/0 indicates 00 and 1/0 indicates 0. For example, a common telephone line has a diameter of 26AWG, about 0.4mm

AWG	Diameter		Sectional area (mm2)	Resistance Ω/km	AWG	Diameter		Sectional area (mm2)	Resistance Ω/km
AWG	mm	inch	Sectional area (mm2)	Resistance Ω/km	AWG	mm	inch	Sectional area (mm2)	Resistance Ω/km
4/0	11.68	0.46	107.22	0.17	22	0.643	0.0253	0.3247	54.3
3/0	10.40	0.4096	85.01	0.21	23	0.574	0.0226	0.2588	48.5
2/0	9.27	0.3648	67.43	0.26	24	0.511	0.0201	0.2047	89.4
1/0	8.25	0.3249	53.49	0.33	25	0.44	0.0179	0.1624	79.6
1	7.35	0.2893	42.41	0.42	26	0.404	0.0159	0.1281	143
2	6.54	0.2576	33.62	0.53	27	0.361	0.0142	0.1021	128
3	5.83	0.2294	26.67	0.66	28	0.32	0.0126	0.0804	227
4	5.19	0.2043	21.15	0.84	29	0.287	0.0113	0.0647	289
5	4.62	0.1819	16.77	1.06	30	0.254	0.0100	0.0507	361
6	4.11	0.1620	13.30	1.33	31	0.226	0.0089	0.0401	321
7	3.67	0.1443	10.55	1.68	32	0.203	0.0080	0.0316	583
8	3.26	0.1285	8.37	2.11	33	0.18	0.0071	0.0255	944
9	2.91	0.1144	6.63	2.67	34	0.16	0.0063	0.0201	956
10	2.59	0.1019	5.26	3.36	35	0.142	0.0056	0.0169	1,200
11	2.30	0.0907	4.17	4.24	36	0.127	0.0050	0.0127	1,530
12	2.05	0.0808	3.332	5.31	37	0.114	0.0045	0.0098	1,377
13	1.82	0.0720	2.627	6.69	38	0.102	0.0040	0.0081	2,400
14	1.63	0.0641	2.075	8.45	39	0.089	0.0035	0.0062	2,100
15	1.45	0.0571	1.646	10.6	40	0.079	0.0031	0.0049	4,080
16	1.29	0.0508	1.318	13.5	41	0.071	0.0028	0.0040	3,685
17	1.15	0.0453	1.026	16.3	42	0.064	0.0025	0.0032	6,300
18	1.02	0.0403	0.8107	21.4	43	0.056	0.0022	0.0025	5,544
19	0.912	0.0359	0.5667	26.9	44	0.051	0.0020	0.0020	10,200
20	0.813	0.0320	0.5189	33.9	45	0.046	0.0018	0.0016	9,180
21	0.724	0.0285	0.4116	42.7	46	0.041	0.0016	0.0013	16,300

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