Wire Size for 6.82 Amps
Typical copper wire gauges for 6.82 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 6.82A 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.
6.82A Wire Gauge by Distance
| Distance | Copper Gauge | V-Drop (Cu) | NEC Status |
|---|---|---|---|
| 25 ft | 14 AWG | 1.07V (0.8923%) | OK |
| 50 ft | 14 AWG | 2.14V (1.78%) | OK |
| 75 ft | 14 AWG | 3.21V (2.68%) | OK |
| 100 ft | 12 AWG | 2.7V (2.25%) | OK |
| 125 ft | 12 AWG | 3.38V (2.81%) | OK |
| 150 ft | 10 AWG | 2.54V (2.11%) | OK |
| 175 ft | 10 AWG | 2.96V (2.47%) | OK |
| 200 ft | 10 AWG | 3.38V (2.82%) | OK |
| 250 ft | 8 AWG | 2.65V (2.21%) | OK |
| 300 ft | 8 AWG | 3.18V (2.65%) | OK |
| 400 ft | 6 AWG | 2.68V (2.23%) | OK |
| 500 ft | 6 AWG | 3.35V (2.79%) | 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.