The result of your conversion between petawatthour and yottajoule appears here
To convert between Petawatthour and Yottajoule you have to do the following:
First divide 3.6e+18 / 1.0e+24 = 0.0000036
Then multiply the amount of Petawatthour you want to convert to Yottajoule, use the chart below to guide you.
Symbol: PWh
No description
Symbol: yJ
No description