Convert power units including watts, kilowatts, megawatts, horsepower, BTU per hour, foot-pounds per second, calories per second, and more.
Watts to horsepower:
1 W = 0.00134102 hp
Horsepower to watts:
1 hp = 745.699872 W
Kilowatts to horsepower:
1 kW = 1.34102 hp
BTU per hour to watts:
1 BTU/hr = 0.293071 W
Power conversions are useful for motors, engines, pumps, generators, HVAC equipment, electrical loads, machinery ratings, and energy system comparisons.
Use this converter when comparing electrical, mechanical, and thermal power units.
Your result shows the entered power converted from the starting unit into the selected ending unit. The calculator also shows the conversion rate used so you can verify the calculation.
For engineering or equipment work, make sure the power unit matches the system rating, formula, or manufacturer specification you are using.
Power is the rate at which work is done or energy is transferred over time.
The SI unit of power is the watt, abbreviated as W.
One mechanical horsepower equals approximately 745.7 watts.
BTU per hour is commonly used to rate heating and cooling equipment such as furnaces, air conditioners, and heat pumps.
This converter is designed for power magnitude conversions, so it uses non-negative values.