The result of your conversion between horsepower hour and terajoule appears here
To convert between Horsepower Hour and Terajoule you have to do the following:
First divide 2684519.5 / 1.0e+12 = 0.00000268
Then multiply the amount of Horsepower Hour you want to convert to Terajoule, use the chart below to guide you.
Symbol: hph
No description
Symbol: TJ
No description