Table Of Contents
Cubic kilometer to cubic meters Conversion
1 cubic kilometer (km³) is equal to 1000000000 cubic meters (m³).
1 km³ = 1000000000 m³
or
1 m³ = 0.000000001 km³
Formula
To convert a volume from cubic kilometer (km³) to cubic meters (m³), multiply the volume in cubic kilometer by 1000000000
v(m³) = v(km³) × 1000000000
Examples:
Convert 1 cubic kilometer to cubic meters:
v(m³) = 1km³ × 1000000000 = 1000000000 m³
Conversion table
| Cubic kilometer (km³) | Cubic meters (m³) |
|---|---|
| 1 km³ | 1e9 m³ |
| 2 km³ | 2e9 m³ |
| 3 km³ | 3e9 m³ |
| 5 km³ | 5e9 m³ |
| 10 km³ | 1e10 m³ |
| 20 km³ | 2e10 m³ |
| 25 km³ | 2.5e10 m³ |
| 50 km³ | 5e10 m³ |
| 100 km³ | 1e11 m³ |
| 250 km³ | 2.5e11 m³ |
| 500 km³ | 5e11 m³ |
| 1000 km³ | 1e12 m³ |
| Cubic meters (m³) | Cubic kilometer (km³) |
|---|---|
| 1 m³ | 1e-9 km³ |
| 2 m³ | 2e-9 km³ |
| 3 m³ | 3e-9 km³ |
| 5 m³ | 5e-9 km³ |
| 10 m³ | 1e-8 km³ |
| 20 m³ | 2e-8 km³ |
| 25 m³ | 2.5e-8 km³ |
| 50 m³ | 5e-8 km³ |
| 100 m³ | 1e-7 km³ |
| 250 m³ | 2.5e-7 km³ |
| 500 m³ | 5e-7 km³ |
| 1000 m³ | 1e-6 km³ |
Frequently asked questions
How do I convert cubic kilometer to cubic meters?
Multiply the value in cubic kilometer by 1000000000 to get the result in cubic meters. For example, 5 km³ × 1000000000 = 5e9 m³.
How many cubic meters are in 1 cubic kilometer?
1 cubic kilometer (km³) is equal to 1e9 cubic meters (m³).
How do I convert cubic meters back to cubic kilometer?
Use the inverse operation: divide the value in cubic meters by 1000000000 to get the result in cubic kilometer.
How accurate is the cubic kilometer to cubic meters conversion?
The converter multiplies by the conversion factor 1000000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
- BIPM — The International System of Units (SI Brochure, 9th edition)
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement (current edition)
- NIST SP 811 (2008 ed.) — Guide for the Use of the International System of Units (SI)
- The Unified Code for Units of Measure (UCUM), Version 2.2 (2024-06-17)