The result of your conversion between gigawatt hour and petawatthour appears here
To convert between Gigawatt Hour and Petawatthour you have to do the following:
First divide 3.6e+12 / 3.6e+18 = 0.000001
Then multiply the amount of Gigawatt Hour you want to convert to Petawatthour, use the chart below to guide you.
Symbol: GWh
No description
Symbol: PWh
No description