Wire Size for 1.79 Amps
Typical copper wire gauges for 1.79 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 1.79A 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.
1.79A Wire Gauge by Distance
| Distance | Copper Gauge | V-Drop (Cu) | NEC Status |
|---|---|---|---|
| 25 ft | 14 AWG | 0.281V (0.2342%) | OK |
| 50 ft | 14 AWG | 0.5621V (0.4684%) | OK |
| 75 ft | 14 AWG | 0.8431V (0.7026%) | OK |
| 100 ft | 14 AWG | 1.12V (0.9368%) | OK |
| 125 ft | 14 AWG | 1.41V (1.17%) | OK |
| 150 ft | 14 AWG | 1.69V (1.41%) | OK |
| 175 ft | 14 AWG | 1.97V (1.64%) | OK |
| 200 ft | 14 AWG | 2.25V (1.87%) | OK |
| 250 ft | 14 AWG | 2.81V (2.34%) | OK |
| 300 ft | 14 AWG | 3.37V (2.81%) | OK |
| 400 ft | 12 AWG | 2.84V (2.36%) | OK |
| 500 ft | 12 AWG | 3.54V (2.95%) | OK |
Copper gauges use the NEC 240.4(D) branch-circuit cap, not raw 75°C ampacity.
Also Calculate
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.