Convert Acre-Foot (US Survey) (ac*ft (US)) to Exaliter (EL) instantly.
About these units
Acre-Foot (US Survey) (ac*ft (US))
The US survey acre-foot differs extremely slightly from the international acre-foot due to the slight difference between the survey foot and the international foot. While the distinction is negligible in most contexts, it is important in surveying, legal water rights, and long-term hydrological accounting, especially in regions where large historical datasets were recorded using US survey measures. This variant highlights how even subtle unit differences can have major implications when dealing with huge volumes over long timescales, such as state water budgets and inter-state compacts.
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.