1 kilogram force m/s (kgf m/s) = 9.80665 watts (w)
1 metric horsepower (hp) = 735.499 watts (W)
1 card/second (cal/s)=4.1868 watts (W) 1 British thermal unit/hour (Btu/h)= 0.293071 watts (W)
1 kilowatt (kW)= 3.6×10^6 Joule (J)/hour (h)
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