The result of your conversion between gram calorie and therm [Europe] appears here
To convert between Gram Calorie and Therm [Europe] you have to do the following:
First divide 4.1858 / 1.0550559e+08 = 0.00000004
Then multiply the amount of Gram Calorie you want to convert to Therm [Europe], use the chart below to guide you.
Symbol: g cal
No description
Symbol: thm
No description