The result of your conversion between zettajoule and dekatherm appears here
To convert between Zettajoule and Dekatherm you have to do the following:
First divide 1.0e+21 / 1.055057e+09 = 947816089557.2467041
Then multiply the amount of Zettajoule you want to convert to Dekatherm, use the chart below to guide you.
Symbol: zJ
No description
Symbol: dathm
No description