Wire Size for 0.83 Amps

Typical copper wire gauges for 0.83 amps across common run lengths on a 120V circuit, sized to keep voltage drop under 3% and respect the NEC 240.4(D) small-conductor rule. At 0.83A the load sits in residential-branch territory where aluminum is not a typical conductor, so the table lists copper only. Actual install sizing depends on conductor material, insulation/termination temperature rating, cable type, ambient and bundling derates, and local code.

0.83A Wire Gauge by Distance

DistanceCopper GaugeV-Drop (Cu)NEC Status
25 ft 14 AWG 0.1303V (0.1086%) check_circle OK
50 ft 14 AWG 0.2606V (0.2172%) check_circle OK
75 ft 14 AWG 0.3909V (0.3258%) check_circle OK
100 ft 14 AWG 0.5212V (0.4344%) check_circle OK
125 ft 14 AWG 0.6516V (0.543%) check_circle OK
150 ft 14 AWG 0.7819V (0.6516%) check_circle OK
175 ft 14 AWG 0.9122V (0.7601%) check_circle OK
200 ft 14 AWG 1.04V (0.8687%) check_circle OK
250 ft 14 AWG 1.3V (1.09%) check_circle OK
300 ft 14 AWG 1.56V (1.3%) check_circle OK
400 ft 14 AWG 2.08V (1.74%) check_circle OK
500 ft 14 AWG 2.61V (2.17%) check_circle OK

Copper gauges use the NEC 240.4(D) branch-circuit cap, not raw 75°C ampacity.

Other Amperages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.