t of power or heat flow rate, which represents one Btu of work done or quantity of heat flow per hour (symbol Btu/h). The International Table British thermal unit is used in the conversion with all the power units here.

Unit of power or heat flow rate, which represents one Btu of work done or quantity of heat flow per minute (symbol Btu/min). The International Table British thermal unit is used in the conversion with all the power units here.

Unit of power or heat flow rate, which represents one Btu of work done or quantity of heat flow per second (Btu/s). The International Table British thermal unit is used in the conversion with all the power units here.

SI unit of power or heat flow rate, which represents one calorie of work done or quantity of heat flow per hour (symbol cal/h). The International Table calorie is used in the conversion with all power units here.

Non SI unit of power or heat flow rate, which represents one calorie of work done or quantity of heat flow per minute (symbol cal/min). The International Table calorie is used in the conversion with all power units here.

Non SI unit of power or heat flow rate, which represents one calorie of work done or quantity of heat flow per second (symbol cal/s). The International Table calorie is used in the conversion with all power units here.

French unit for Metric horsepower (symbol cv), representing that the power required to raise a 75kg mass 1 metre in 1 second. 1 cv = 75 kp·m/s = 735.49875 kW.

The mechanical horsepower was originated from British engineer James Watt . It was defined as 33,000 foot-pounds of work per minute, i.e. 745.69987158227 W

The electrical horsepower is used by the electrical industry for electrical machines and is defined to be exactly 746 W. Electric motors can never run at 100% efficiency. The nameplates on electrical motors show their motor power output, not their power input.

Metric horsepower began in Germany in the 19th century and became popular across Europe and Asia. It was defined as 75 times of the work of kilopond.meter per second. 1 PS = 75 kp·m/s = 0.73549875 kW

German unit for metric power (symbol PS). 1 PS = 75 kp·m/s = 735.49875 kW.

The poncelet (p) is an obsolete unit of power, once used in France and replaced by cheval vapeur (cv, metric horsepower). The unit was named after French mathematician and engineer, Jean-Victor Poncelet (1788-1867). One poncelet is defined as the power required to raise a hundred-kilogram mass at a velocity of one metre per second (100 kilogram-force·m/s). 1 p = 980.665 W = 1⅓ metric horsepower = 1.315 hp mechnical horsepower. .

SI derived unit of power with special name (symbol watt). It is expressed in terms of SI derived unit as J/s or kg.m²/s³, representing one joule of work done in one second.

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