How many horsepower hour in 1 gj? The answer is 372.50614122937. We assume you are converting between horsepower hour and gigajoule. You can view more details on each measurement unit: horsepower hour or gj The SI derived unit for energy is the joule. 1 joule is equal to 3.7250614122937E-7 horsepower hour, or 1.0E-9 gj. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between horsepower hours and gigajoules. Type in your own numbers in the form to convert the units!
1 horsepower hour to gj = 0.00268 gj
10 horsepower hour to gj = 0.02685 gj
50 horsepower hour to gj = 0.13423 gj
100 horsepower hour to gj = 0.26845 gj
200 horsepower hour to gj = 0.5369 gj
500 horsepower hour to gj = 1.34226 gj
1000 horsepower hour to gj = 2.68452 gj
You can do the reverse unit conversion from gj to horsepower hour, or enter any two units below:
The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.
So 1 gigajoule = 109 joules.
The definition of a joule is as follows:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).
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