Power Converter
Convert watts, kilowatts, megawatts, and mechanical horsepower.
Formula: multiply the source value by 0.74569987
Quick Conversions
About this tool
Power is energy per time. The watt is the SI unit. Mechanical horsepower is 550 ft·lbf/s, or about 745.7 W.
How it works
Enter a power value, choose units, and read the result as you type.
value_to = value_from × (from_in_watts / to_in_watts)
Examples
100 hp to kW
100 × 745.7 / 1,000 ≈ 74.57 kW.
FAQ
Metric or mechanical horsepower?
Mechanical (imperial) horsepower, 745.7 W. Metric PS is about 735.5 W.
How does this relate to energy?
Energy = power × time. Convert power here, then duration in the time converter.