About the Units
cubic femtometer (fm³)
An extremely tiny volume unit used in particle physics.
acre-foot (ac · ft)
A volume unit used in water resource management, equal to the volume of one acre covered to a depth of one foot.
Common Conversions
- 1 fm³ = 0.0 ac · ft
- 3.4028237e38 fm³ = 1 ac · ft