About the Units
hectometer (hm)
A length unit equal to 100 meters.
zettameter (Zm)
A massive length unit equal to 10^21 meters.
Common Conversions
- 1 hm = 1e-19 Zm
- 10000000000000000000.0 hm = 1 Zm
Convert from hectometers to zettameters
Conversion Information
To convert from hectometers to zettameters, multiply by 1e-19
1 hm = 1e-19 Zm