The result of your conversion between dekatherm and zettajoule appears here
To convert between Dekatherm and Zettajoule you have to do the following:
First divide 1.055057e+09 / 1.0e+21 = 0.
Then multiply the amount of Dekatherm you want to convert to Zettajoule, use the chart below to guide you.
Symbol: dathm
No description
Symbol: zJ
No description