Wire Size for 2.05 Amps
Typical copper wire gauges for 2.05 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 2.05A 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.
2.05A Wire Gauge by Distance
| Distance | Copper Gauge | V-Drop (Cu) | NEC Status |
|---|---|---|---|
| 25 ft | 14 AWG | 0.3218V (0.2682%) | OK |
| 50 ft | 14 AWG | 0.6437V (0.5364%) | OK |
| 75 ft | 14 AWG | 0.9656V (0.8046%) | OK |
| 100 ft | 14 AWG | 1.29V (1.07%) | OK |
| 125 ft | 14 AWG | 1.61V (1.34%) | OK |
| 150 ft | 14 AWG | 1.93V (1.61%) | OK |
| 175 ft | 14 AWG | 2.25V (1.88%) | OK |
| 200 ft | 14 AWG | 2.57V (2.15%) | OK |
| 250 ft | 14 AWG | 3.22V (2.68%) | OK |
| 300 ft | 12 AWG | 2.44V (2.03%) | OK |
| 400 ft | 12 AWG | 3.25V (2.71%) | OK |
| 500 ft | 10 AWG | 2.54V (2.12%) | 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.