Wire Size Calculator
Free wire size calculator with instant results, powered by AI.
1–400
Wire run from panel to device
✨ Your Result
12
AWG WIRE SIZE · copper for 20A at 50 ftAmpacity20
Voltage Drop2.65
Circular Mils5,761
Use AWG 12 copper wire for 20A over 50 ft at 120V. Voltage drop: 2.65% (NEC recommends under 3%).
FAQ content coming soon. Ask our AI anything in the meantime!
About content coming soon. Ask our AI anything in the meantime!