The result of your conversion between Q unit and petawatthour appears here
To convert between Q Unit and Petawatthour you have to do the following:
First divide 1.0550559e+21 / 3.6e+18 = 293.07108333
Then multiply the amount of Q Unit you want to convert to Petawatthour, use the chart below to guide you.
Symbol: Q unit
No description
Symbol: PWh
No description