ABYC Marine DC Wire Ampacity & Sizing Chart

Engineered according to ABYC Standard E-11 for single conductors rated at 105°C insulation in marine environments.

Plug in your amps and wire distance to get the exact safe AWG instantly.

Wire Gauge (AWG)	Circular Mils (CM)	Ohms / 1,000 ft	Max Amps (Outside Engine Room)	Max Amps (Inside Engine Room 50°C)
16 AWG	2,580	4.99 Ω	25 A	21 A
14 AWG	4,110	3.07 Ω	35 A	30 A
12 AWG	6,530	1.93 Ω	45 A	38 A
10 AWG	10,380	1.21 Ω	60 A	51 A
8 AWG	16,510	0.764 Ω	80 A	68 A
6 AWG	26,240	0.481 Ω	120 A	102 A
4 AWG	41,740	0.302 Ω	160 A	136 A
2 AWG	66,360	0.190 Ω	210 A	178 A
1/0 AWG	105,600	0.120 Ω	285 A	242 A
2/0 AWG	133,100	0.095 Ω	330 A	280 A