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 yoctometer (ym³)
The smallest theoretically conceived volume unit.
Common Conversions
- 1 km³ = 3.4028237e38 ym³
- 0.0 km³ = 1 ym³