The result of your conversion between hectojoule and gigawatt hour appears here
To convert between Hectojoule and Gigawatt Hour you have to do the following:
First divide 100 / 3.6e+12 = 0.
Then multiply the amount of Hectojoule you want to convert to Gigawatt Hour, use the chart below to guide you.
Symbol: hJ
No description
Symbol: GWh
No description