The result of your conversion between yottajoule and zettawatthour appears here
To convert between Yottajoule and Zettawatthour you have to do the following:
First divide 1.0e+24 / 3.6e+24 = 0.27777778
Then multiply the amount of Yottajoule you want to convert to Zettawatthour, use the chart below to guide you.
Symbol: yJ
No description
Symbol: ZWh
No description