About the Units
zeptometer (zm)
An incredibly tiny length unit beyond standard measurement scales.
foot (U.S. survey) (ft (U.S. survey))
A slightly different foot unit used in land surveying.
Common Conversions
- 1 zm = 3.2808334e-21 ft (U.S. survey)
- 304800600000000000000.0 zm = 1 ft (U.S. survey)