›› Measurement unit: femtogram

Full name: femtogram

Plural form: femtograms

Symbol: fg

Category type: weight

Scale factor: 1.0E-18

›› SI unit: kilogram

The SI base unit for mass is the kilogram. The SI derived unit for weight or force is the newton.
1 kilogram is equal to 1.0E+18 femtogram.

Valid units must be of the weight type.
You can use this form to select from known units:

Convert femtogram to

The SI prefix "femto" represents a factor of 10^-15, or in exponential notation, 1E-15.

So 1 femtogram = 10^-15 grams-force.