Power Unit Conversion Calculator Power Unit Conversion Calculator Convert power values between different units. * All inputs must be positive numbers. Step 1: Enter Conversion Data Input Value: From Unit: Watts (W) Kilowatts (kW) Megawatts (MW) Horsepower (hp) To Unit: Watts (W) Kilowatts (kW) Megawatts (MW) Horsepower (hp) Convert Power Unit Conversion Result Converted Value: Recalculate