About the Units
zeptometer (zm)
An incredibly tiny length unit beyond standard measurement scales.
meter (m)
The fundamental SI unit of length, defined by the speed of light in a vacuum.
Common Conversions
- 1 zm = 1e-21 m
- 1e21 zm = 1 m
Convert from zeptometers to meters
Conversion Information
To convert from zeptometers to meters, multiply by 1e-21
1 zm = 1e-21 m