About the Units
foot (U.S. survey) (ft (U.S. survey))
A slightly different foot unit used in land surveying.
atomic unit of length (a.u. of length)
A reference unit of length used in quantum mechanics and atomic physics.
Common Conversions
- 1 ft (U.S. survey) = 5759896600.0 a.u. of length
- 1.7361423e-10 ft (U.S. survey) = 1 a.u. of length