The result of your conversion between Btu and tonne of oil equivalent appears here
To convert between Btu and Tonne Of Oil Equivalent you have to do the following:
First divide 1055.0559 / 4.1868e+10 = 0.00000003
Then multiply the amount of Btu you want to convert to Tonne Of Oil Equivalent, use the chart below to guide you.
Symbol: Btu
No description
Symbol: T oil
No description