About the Units
kilogram (kg)
The SI base unit of mass, defined as the mass of the International Prototype Kilogram.
zeptogram (zg)
A unit of mass equal to 10^-21 grams or 10^-24 kilograms.
Common Conversions
- 1 kg = 1.0000001e24 zg
- 9.999999e-25 kg = 1 zg