Convert Cubic Meter (m³) to Cubic Kilometer (km³) instantly.
About these units
Cubic Meter (m³)
The cubic meter is the SI unit of volume, representing the volume of a cube one meter per side. It is vastly larger than a liter, since 1 m³ = 1,000 L. Cubic meters measure the volumes of rooms, shipping containers, refrigeration units, natural gas consumption, and water flows in hydrology and civil engineering. Because it is derived directly from the meter, the m³ integrates perfectly into other SI measurements such as density (kg/m³) and flow rate (m³/s). In industry, pricing and standards for timber, construction materials, and natural gas often use cubic meters. For environmental science, m³ is essential when modeling rainfall runoff, river discharge, or air pollutant concentrations. It stands as the backbone of large-scale volumetric measurement.
Cubic Kilometer (km³)
A cubic kilometer represents one billion cubic meters, making it a colossal volume unit used in geology, hydrology, glaciology, and planetary science. Large lakes, ice sheets, magma chambers, and atmospheric water content are often measured in km³. Earth's total ocean volume—about 1.335 billion km³—illustrates the unit's utility in describing planetary-scale systems. The km³ gives scientists a manageable number when dealing with natural features too massive for cubic meters or liters to express conveniently.