Watts, Amps and Volts Calculator

Circuit

DCAC 1-phaseAC 3-phase

Solve for

WattsAmpsVolts

Power

W

Current

A

Voltage

V

For three-phase, use line-to-line voltage.

Power factor

1.0 for resistive loads; motors are often 0.8–0.9.

Real power

1,800 W

Current: 15 A
Voltage: 120 V
Real power: 1.8 kW

Open the full watts, amps and volts calculator with the formula and FAQs at Calcs for Life