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
acre-foot (ac · ft)
A volume unit used in water resource management, equal to the volume of one acre covered to a depth of one foot.
Common Conversions
- 1 km³ = 810708.5 ac · ft
- 0.000001233489 km³ = 1 ac · ft