Copper Wire Amperage Ratings — Resources

AWG	mm2	Ø in	Ø mm	Amps w/ 75°C Insulation	Amps w/ 90°C Insulation	Amps w/ 105°C Insulation	Ohms / 1000ft
30	0.05	0.010	0.25	2.0	2.2	2.5	103.20
28	0.08	0.013	0.32	3.0	3.0	3.4	64.90
26	0.13	0.016	0.40	4.0	4.0	4.6	40.81
24	0.21	0.020	0.51	5.0	5.5	6.2	25.67
22	0.33	0.025	0.65	8.0	10	11	16.14
20	0.52	0.032	0.81	10	13	14	10.15
- -	0.75	0.039	0.98	9.5	19	19	7.29
18	0.82	0.040	1.02	10	20	20	6.67
- -	1.0	0.044	1.13	13	21	21	5.47
16	1.3	0.051	1.29	15	25	25	4.17
- -	1.5	0.054	1.38	16	24	29	3.65
14	2.1	0.064	1.63	20	30	35	2.63
- -	2.5	0.070	1.78	21	24	38	2.19
12	3.3	0.081	2.05	25	40	45	1.65
- -	4.0	0.089	2.26	34	46	51	1.37
10	5.3	0.102	2.59	40	55	60	1.04
- -	6.0	0.109	2.76	53	57	65	0.91
8	8.4	0.129	3.27	65	70	80	0.65
- -	10.0	0.142	3.60	79	84	100	0.55
6	13.3	0.161	4.10	95	100	120	0.41
- -	16.0	0.213	5.40	105	113	134	0.34
4	21	0.205	5.20	125	135	160	0.26
- -	25	0.220	5.60	141	150	175	0.22
3	27	0.228	5.80	145	155	180	0.21
2	34	0.256	6.50	170	180	210	0.16
- -	35	0.264	6.70	173	186	217	0.16
1	42	0.287	7.30	195	210	245	0.13
- -	50	0.315	8.00	220	235	274	0.109
0	54	0.327	8.30	230	245	285	0.102
00	68	0.366	9.30	265	285	330	0.081
- -	70	0.370	9.40	274	292	341	0.078
000	85	0.409	10.4	310	330	385	0.064

Insulation Types:

60°C Insulation: TW, UF
75°C Insulation: RHW, THHW, THW, THWN, XHHW, USE, ZW
90°C Insulation: FEP, FEPB, MI, RHH, RHW-2, SA, SIS, TBS, THHN, THHW, THW-2, THWN-2, USE-2, XHH, XHHW, XHHW-2, ZW-2

Notes: