The result of your conversion between gigajoule and gigawatt hour appears here
To convert between Gigajoule and Gigawatt Hour you have to do the following:
First divide 1.0e+09 / 3.6e+12 = 0.00027778
Then multiply the amount of Gigajoule you want to convert to Gigawatt Hour, use the chart below to guide you.
Symbol: GJ
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Symbol: GWh
No description