Power converters

Power is the rate of energy transfer — how fast work is done or heat is moved. The SI unit is the watt (W). Cars are still rated in mechanical horsepower in much of the world; the metric horsepower (PS / CV) is slightly smaller. Convertitive uses exact definitions: 1 hp (mechanical) = 745.69987158227022 W, 1 hp (metric) = 735.49875 W.