Convert Cubic Kilometer (km³) to Exaliter (EL) instantly.
About these units
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.
Exaliter (EL)
An exaliter, equal to 10¹⁸ liters, appears in discussions of planetary-scale volumes, such as estimating water content across extraterrestrial oceans, atmospheric volumes of gas giants, or hydrospheric mass estimates in exoplanet research. Because this unit is so large, it is rarely used in practical Earth-based science except in global summations. However, in cosmology or exoplanet studies, Vast quantities of liquids or gases on super-Earths or ocean worlds may be expressed in EL to maintain manageable numeric magnitudes. The exaliter represents the outer limits of volumetric units still grounded in physical application rather than purely abstract scaling.