Power Converter

Convert between Watts, kilowatts, horsepower, BTU/h and more power units.

What is Power?

Power is the rate at which energy is transferred or converted. It measures how quickly work is done. The SI unit is the Watt (W), equal to one Joule per second.

Horsepower is commonly used for engines and motors, especially in the US. One mechanical horsepower equals about 746 watts.

Power Conversion Table

FromToMultiply by
1 kWWatts1,000
1 hp (mechanical)Watts745.7
1 hp (metric)Watts735.5
1 kWhp1.341
1 BTU/hWatts0.293

Common Power Ratings

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