About the Units
foot (U.S. survey) (ft (U.S. survey))
A slightly different foot unit used in land surveying.
attometer (am)
An exceptionally small length unit at the subatomic scale.
Common Conversions
- 1 ft (U.S. survey) = 304800600000000000.0 am
- 3.2808336e-18 ft (U.S. survey) = 1 am