The result of your conversion between quad and Btu appears here
To convert between Quad and Btu you have to do the following:
First divide 1.0550559e+18 / 1055.0559 = 1000000000000000.
Then multiply the amount of Quad you want to convert to Btu, use the chart below to guide you.
Symbol: quad
No description
Symbol: Btu
No description