The result of your conversion between megawatthour and gigajoule appears here
To convert between Megawatthour and Gigajoule you have to do the following:
First divide 3.6e+09 / 1.0e+09 = 3.6
Then multiply the amount of Megawatthour you want to convert to Gigajoule, use the chart below to guide you.
Symbol: MWh
No description
Symbol: GJ
No description