The result of your conversion between attonewton and kilogram-force appears here
To convert between Attonewton and Kilogram-force you have to do the following:
First divide 1.0e-18 / 0.00980665*1000 = 0.
Then multiply the amount of Attonewton you want to convert to Kilogram-force, use the chart below to guide you.
Symbol: aN
No description
Symbol: kgf
No description