The result of your conversion between terajoule and grain/quart [UK] appears here
To convert between Terajoule and Grain/quart [UK] you have to do the following:
First divide 1.0e+12 / ((0.45359237/16)*(192/175)/480)/(0.00454609/4) = 17539222496180.875
Then multiply the amount of Terajoule you want to convert to Grain/quart [UK], use the chart below to guide you.
Symbol: TJ
No description
Symbol: gr/qt
No description