Wire Size for 1.09 Amps
Typical copper wire gauges for 1.09 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 1.09A 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.
1.09A Wire Gauge by Distance
| Distance | Copper Gauge | V-Drop (Cu) | NEC Status |
|---|---|---|---|
| 25 ft | 14 AWG | 0.1711V (0.1426%) | OK |
| 50 ft | 14 AWG | 0.3423V (0.2852%) | OK |
| 75 ft | 14 AWG | 0.5134V (0.4278%) | OK |
| 100 ft | 14 AWG | 0.6845V (0.5704%) | OK |
| 125 ft | 14 AWG | 0.8557V (0.713%) | OK |
| 150 ft | 14 AWG | 1.03V (0.8557%) | OK |
| 175 ft | 14 AWG | 1.2V (0.9983%) | OK |
| 200 ft | 14 AWG | 1.37V (1.14%) | OK |
| 250 ft | 14 AWG | 1.71V (1.43%) | OK |
| 300 ft | 14 AWG | 2.05V (1.71%) | OK |
| 400 ft | 14 AWG | 2.74V (2.28%) | OK |
| 500 ft | 14 AWG | 3.42V (2.85%) | 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.