The result of your conversion between Btu and gigacalorie [15° C] appears here
To convert between Btu and Gigacalorie [15° C] you have to do the following:
First divide 1055.0559 / 4185800000 = 0.00000025
Then multiply the amount of Btu you want to convert to Gigacalorie [15° C], use the chart below to guide you.
Symbol: Btu
No description
Symbol: Gcal
No description