The result of your conversion between femtojoule and zeptojoule appears here
To convert between Femtojoule and Zeptojoule you have to do the following:
First divide 1.0e-15 / 1.0e-21 = 1000000.
Then multiply the amount of Femtojoule you want to convert to Zeptojoule, use the chart below to guide you.
Symbol: fJ
No description
Symbol: zJ
No description