The result of your conversion between Btu [thermochemical] and dekatherm appears here
To convert between Btu [thermochemical] and Dekatherm you have to do the following:
First divide 1054.3503 / 1.055057e+09 = 0.000001
Then multiply the amount of Btu [thermochemical] you want to convert to Dekatherm, use the chart below to guide you.
Symbol: Btu
No description
Symbol: dathm
No description