Measurement unit: cubic kilometer

Full name: cubic kilometre

Plural form: cubic kilometers

Symbol: km³

Alternate spelling: cubic kilometres

Category type: volume

Scale factor: 1000000000

SI unit: cubic meter

The SI derived unit for volume is the cubic meter.
1 cubic meter is equal to 1.0E-9 cubic kilometer.

Valid units must be of the volume type.
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The cubic kilometer is a metric measure of volume or capacity equal to a cube 1 kilometer on each edge.