About the Units
femtogram (fg)
A unit of mass equal to 10^-15 grams or 10^-18 kilograms.
hundredweight (short) (cwt short)
A unit of mass equal to 100 pounds or approximately 45.36 kilograms, used in the US customary system.
Common Conversions
- 1 fg = 2.2046224e-20 cwt short
- 45359240000000000000.0 fg = 1 cwt short