Volts to kilowatts calculator

Enter the voltage in volts, and current in amps, and press the Calculate button to get the power in watts:

Volts (V) to kilowatts (kW) calculator - Convert voltage in volts to kilowatts with our user-friendly calculator. Understand the relationship between electrical potential and power consumption. Simplify power unit conversions with our Volts to Kilowatts Calculator.

DC volts to the kilowatts calculation formula

The power P in kilowatts (kW) is equal to the voltage V in volts (V), times the current I in amps (A) divided by 1000:

P_(kW) = V_(V) × I_(A) / 1000

AC single phase volts to the kilowatts calculation formula

The power P in kilowatts (kW) is equal to the power factor PF times the current I in amps (A), times the voltage V in volts (V) divided by 1000:

P_(kW) = PF × I_(A) × V_(V) / 1000

AC three phase volts to the kilowatts calculation formula

The power P in kilowatts (kW) is equal to the square root of 3 times the power factor PF times the current I in amps (A), times the line-to-line RMS voltage V_L-L in volts (V) divided by 1000:

P_(kW) = √3 × PF × I_(A) × V_L-L(V) / 1000

           ≈ 1.732 × PF × I_(A) × V_L-L(V) / 1000