The International System of Units (SI)

To convert from Multiply by To obtain horsepower 3.3 x 104 ft-lb/min horsepower 5.50 x 102 ft-lb/s horsepower 7.457 x 10-1 kilowatts horsepower-hours 2.547 x 103 Btu horsepower-hours 1.98 x 106 ft-lb horsepower-hours 2.684 x 106 joules inches 2.540 centimeters inches 2.540 x 10-2 meters joules 9.486 x 10-4 Btu joules 7.376 x 10-1 ft-pounds ... ................
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