The result of your conversion between gigacalorie [15° C] and zettajoule appears here
To convert between Gigacalorie [15° C] and Zettajoule you have to do the following:
First divide 4185800000 / 1.0e+21 = 0.
Then multiply the amount of Gigacalorie [15° C] you want to convert to Zettajoule, use the chart below to guide you.
Symbol: Gcal
No description
Symbol: zJ
No description