30 Amps to Watts
30 Amps equals 3,600W at 120V or 7,200W at 240V. Common loads: Electric dryer, water heater, RV outlet.
30 Amps to Watts
7,200 W @240V
120V
3,600W
208V
6,240W
240V
7,200W
277V
8,310W
480V
14,400W
The Formula
Watts = Amps × Volts. For 30 Amps at 240V: 30 × 240 = 7,200W.
Amps to Watts at Every Voltage
| Voltage | Watts | kW |
|---|---|---|
| 120V | 3,600W | 3.6 kW |
| 208V | 6,240W | 6.2 kW |
| 240V | 7,200W | 7.2 kW |
| 277V | 8,310W | 8.3 kW |
| 480V | 14,400W | 14.4 kW |
Common 30A Loads
Electric dryer, water heater, RV outlet. Always check nameplate ratings.
Disclaimer: For reference only. Consult a licensed electrician.