Every gauge,
one sheet each.

A sheet for every common wire size from 4/0 down to 28 AWG. Each gives the solid and stranded diameter, the area in circular mils and mm², NEC Table 310.16 ampacity for copper and aluminum, the largest breaker, how far it can run at 120, 240 and 12 V, and how many fit in conduit; the fine sizes add the coil-wrap measurement.

Wire gauges from 4/0 to 28 AWG: solid diameter in millimetres, area in mm², NEC Table 310.16 copper ampacity at 60, 75 and 90 °C, largest breaker on 75 °C terminals and DC resistance at 75 °C
Gauge	Diameter	mm²	Amps 60/75/90 °C	Breaker	Ω/kft
4/0 AWG	11.68 mm	107.22	195 / 230 / 260	225 A	0.0608
3/0 AWG	10.40 mm	85.03	165 / 200 / 225	200 A	0.0766
2/0 AWG	9.27 mm	67.44	145 / 175 / 195	175 A	0.0967
1/0 AWG	8.25 mm	53.51	125 / 150 / 170	150 A	0.122
1 AWG	7.35 mm	42.41	110 / 130 / 145	125 A	0.154
2 AWG	6.54 mm	33.63	95 / 115 / 130	110 A	0.194
3 AWG	5.83 mm	26.66	85 / 100 / 115	100 A	0.245
4 AWG	5.19 mm	21.15	70 / 85 / 95	80 A	0.308
6 AWG	4.12 mm	13.30	55 / 65 / 75	60 A	0.491
8 AWG	3.26 mm	8.37	40 / 50 / 55	50 A	0.778
10 AWG	2.59 mm	5.26	30 / 35 / 40	30 A	1.24
12 AWG	2.05 mm	3.31	20 / 25 / 30	20 A	1.98
14 AWG	1.63 mm	2.08	15 / 20 / 25	15 A	3.14
16 AWG	1.29 mm	1.31	— / — / 18	—	4.99
18 AWG	1.02 mm	0.821	— / — / 14	—	7.95
20 AWG	0.812 mm	0.518	—	—	12.341
22 AWG	0.644 mm	0.325	—	—	19.646
24 AWG	0.511 mm	0.205	—	—	31.22
26 AWG	0.405 mm	0.129	—	—	49.656
28 AWG	0.321 mm	0.081	—	—	78.829

Ampacity from NEC 2023 Table 310.16 at 30 °C with no more than three current-carrying conductors; 240.4(D) caps 14, 12 and 10 AWG at 15, 20 and 30 A.

Every gauge,one sheet each.

Browse all 20 gauges, 12 conduit sizes and 10 circuits

Every gauge,
one sheet each.