About the Units
cubic kilometer (km³)
A large volume unit equal to 10^9 cubic meters, used in geological and geographical measurements.
Learn more about cubic kilometers
cubic picometer (pm³)
An incredibly small volume unit used in atomic and subatomic research.
Common Conversions
- 1 km³ = 3.4028237e38 pm³
- 1e-45 km³ = 1 pm³