How Many Amps Is 5000 Watts?
At 120 V DC, 5000 watts = 41.6667 A. At 240 V DC, 5000 watts = 20.8333 A. For AC circuits, divide by voltage × power factor (e.g. at 240V AC, PF 0.8: 26.0417 A). (Note: 5000W at 120V is very unusual in practice — most 5kW loads run at 240V). Use the calculator below for any voltage or circuit type.
5000 Watts to Amps — DC Reference Chart
| Voltage | Current (DC) | Application |
|---|---|---|
| 12 V | 416.6667 A | 12V automotive / RV / solar |
| 24 V | 208.3333 A | 24V solar / industrial DC |
| 48 V | 104.1667 A | 48V telecom / e-bike |
| 120 V | 41.6667 A | US household standard |
| 240 V | 20.8333 A | US/EU 240V circuit |
| 480 V | 10.4167 A | Industrial 3-phase (per phase) |
Breaker sizing: At 120V, 5000W draws 41.67A — very unusual at this voltage. Per NEC 210.20, size breakers at 125% of continuous load: 41.67 × 1.25 = 52.08A. This requires a 60A breaker. At 240V (20.83A × 1.25 = 26.04A), a 30A breaker is required. In practice, 5000W loads (water heaters, HVAC, EV chargers) almost always run at 240V. Always consult a licensed electrician.
Frequently Asked Questions
How many amps is 5000 watts at 120V?
5000 watts at 120V DC = 5000 ÷ 120 = 41.6667 amps (unusual at this voltage). For AC single-phase with PF 0.8: 5000 ÷ (120 × 0.8) = 52.0833 amps.
How many amps is 5000 watts at 240V?
5000 watts at 240V DC = 5000 ÷ 240 = 20.8333 amps. For AC single-phase with PF 0.8: 5000 ÷ (240 × 0.8) = 26.0417 amps.
What size breaker do I need for 5000 watts?
At 120V, 5000W draws 41.67A. The NEC requires breakers sized at 125% for continuous loads: 41.67 × 1.25 = 52.08A. A 60A breaker is required (unusual). At 240V (20.83A), a 30A breaker is required (typical for 5kW loads).