The result of your conversion between gram calorie and gigajoule appears here
To convert between Gram Calorie and Gigajoule you have to do the following:
First divide 4.1858 / 1.0e+09 = 0.
Then multiply the amount of Gram Calorie you want to convert to Gigajoule, use the chart below to guide you.
Symbol: g cal
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Symbol: GJ
No description