About the Units
zettameter (Zm)
A massive length unit equal to 10^21 meters.
atomic unit of length (a.u. of length)
A reference unit of length used in quantum mechanics and atomic physics.
Common Conversions
- 1 Zm = 1.8897261e31 a.u. of length
- 5.2917723e-32 Zm = 1 a.u. of length