Copper and Aluminum Wire - Max Amps vs. Gauge

Maximum current in copper and aluminum wire at ambient temperature 86°F (30°C). Reference table for determining safe maximum amperage based on wire gauge and material type.

AWG Gauge	Copper Wire (Amps)	Aluminum Wire (Amps)	mm² Equivalent
#4	95	75	16
#6	75	60	10
#8	60	47	6
#10	40	30	5
#12	30	23	3.3
#14	20	15	2.1
#16	16	12	1.3
#18	13	10	0.82
#20	10	8	0.52