The result of your conversion between gram calorie and gigawatt hour appears here
To convert between Gram Calorie and Gigawatt Hour you have to do the following:
First divide 4.1858 / 3.6e+12 = 0.
Then multiply the amount of Gram Calorie you want to convert to Gigawatt Hour, use the chart below to guide you.
Symbol: g cal
No description
Symbol: GWh
No description