7,500 Watts to Amps — How Many Amps Is 7,500 Watts?
7,500 Watts equals 62.50 amps at 120V or 31.25 amps at 240V. Common 7500W devices: EV charger (32A), large hot tub.
7,500 Watts Amps at Every Voltage
| Voltage | Single Phase | Three Phase |
|---|---|---|
| 120V | 62.50A | 36.09A |
| 208V | 36.06A | 20.82A |
| 240V | 31.25A | 18.04A |
| 277V | 27.08A | 15.63A |
| 480V | 15.63A | 9.02A |
The Formula
Single Phase: Amps = Watts ÷ Volts. For 7,500 Watts at 120V: 7500 ÷ 120 = 62.50A.
Three Phase: Amps = Watts ÷ (Volts × 1.732). For 7,500 Watts at 240V 3-phase: 7500 ÷ (240 × 1.732) = 18.04A.
With power factor: Amps = Watts ÷ (Volts × PF). A PF of 0.8 increases the current draw by 25%.
Wire and Breaker for 7,500 Watts at 120V
At 120V, 7,500 Watts draws 62.5A. Recommended: 4 AWG copper wire with a 70A breaker per NEC 310.16. For continuous loads (3+ hours), apply 125% rule. Use our Wire Size Calculator for exact sizing.
Common 7500W Devices
EV charger (32A), large hot tub. Always check the device nameplate for exact wattage — rated watts may differ from actual consumption.
Disclaimer: Calculations are for reference. Verify with device nameplate. Consult a licensed electrician for installations.