# Conversion/Equivalency Factors

## "H" Conversion/Equivalency Factors

Original Unit Multiplied
By
Conversion
Factor
Equals Final Unit
hands x 10.16 = centimeters (cm)
hectares (ha) x 2.47 = acres
hectares (ha) x 107,600 = square feet (ft2)
hectares (ha) x 10,000 = square meters (m2)
hectograms x 100 = grams (g)
hectoliters x 100 = liters (L)
hectometers x 100 = meters (m)
hectowatts x 100 = watts (W)
henries x 1,000 = millihenries
hogsheads, British x 10.11 = cubic feet (ft3 or cf)
hogsheads, US x 8.42 = cubic feet (ft3 or cf)
hogsheads, US x 63 = gallons, US
horsepower (hp) x 42.44 = British thermal units/minute
horsepower (hp) x 33,000 = foot–pounds/minute
horsepower (hp) x 550 = foot–pounds/second
horsepower (hp) x 10.68 = kilogram–calories/minute
horsepower (hp) x 0.745 7 = kilowatts
horsepower (electric) x 746 = watts
horsepower, UK (hp) x 745.7 = watts (W)
horsepower (boiler) x 33,479 = British thermal units/hour
horsepower (boiler) x 9.80 = kilowatts
horsepower, metric x 0.98 = horsepower (hp)
horsepower–hours x 2,547 = British thermal units (Btu)
horsepower–hours x 26,800,000,000,000 = ergs
horsepower–hours x 1,980,000 = foot–pounds
horsepower–hours x 641,190 = gram–calories
horsepower–hours x 2,684,000 = joules (J)
horsepower–hours x 641.10 = kilogram–calories
horsepower–hours x 273,700 = kilogram–meters
horsepower–hours x 0.74 = kilowatthours (kWh)
hours (mean solar) x 0.04 = days
hours (mean solar) x 5.952381E–03 = weeks
hundredweights, long x 112 = pounds (lb)
hundredweights, long x 0.05 = tons, long
hundredweights, short x 1,600 = ounces, avoirdupois
hundredweights, short x 100 = pounds (lb)
hundredweights, short x 0.04 = tons, metric (t)
hundredweights, short x 0.04 = tons, long

a Exact conversion.

b Calculated by the Energy Information Administration.

c Estimated.

This table was last updated January 31, 2014.