The result of your conversion between gigajoule and Btu appears here
To convert between Gigajoule and Btu you have to do the following:
First divide 1.0e+09 / 1055.0559 = 947817.07774915
Then multiply the amount of Gigajoule you want to convert to Btu, use the chart below to guide you.
Symbol: GJ
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Symbol: Btu
No description