The result of your conversion between Btu and kiloton/cubic yard [US] appears here
To convert between Btu and Kiloton/cubic Yard [US] you have to do the following:
First divide 1055.0559 / ((0.45359237*2000)*1000)/((0.0037854118/231)*1728*27) = 0.00088918
Then multiply the amount of Btu you want to convert to Kiloton/cubic Yard [US], use the chart below to guide you.
Symbol: Btu
No description
Symbol: kt/yd³
No description