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⚡ Cubic Meters to Cubic Kilometers: the quick answer
1 m³ = 1 × 10⁻⁹ km³
1 cubic meter equals 1 × 10⁻⁹ cubic kilometers
To convert cubic meters to cubic kilometers, multiply the value by 1 × 10⁻⁹.
To go the other way, multiply cubic kilometers by 1,000,000,000 to get cubic meters.
↔ Convert cubic kilometers to cubic meters instead
🧮 Formula
Every unit here is defined by its volume in cubic meters, so the conversion factor is (cubic meters per cubic meter) ÷ (cubic meters per cubic kilometer).
📊 Cubic Meters to Cubic Kilometers conversion table
✏️ Worked examples
Convert 25 cubic meters to cubic kilometers
25 m³ × 1 × 10⁻⁹ = 2.5 × 10⁻⁸ km³
Try this example →
Convert 250 cubic meters to cubic kilometers
250 m³ × 1 × 10⁻⁹ = 2.5 × 10⁻⁷ km³
Try this example →
📘 About these units
Cubic meter (m³). The cubic meter is the SI unit of volume, 1,000 liters.
Cubic kilometer (km³). A cubic kilometer is a billion cubic meters, used for lakes, glaciers and reservoirs.
❓ Frequently asked questions
How many cubic kilometers are in one cubic meter?
There are 1 × 10⁻⁹ cubic kilometers in one cubic meter.
How do I convert cubic meters to cubic kilometers?
Multiply the number of cubic meters by 1 × 10⁻⁹. For example, 10 cubic meters equal 1 × 10⁻⁸ cubic kilometers.
How many cubic meters are in one cubic kilometer?
One cubic kilometer equals 1,000,000,000 cubic meters.
🔗 More volume conversions
All volume units →