Convert Earth's Volume (V⊕) to Acre-Foot (ac*ft) instantly.
About these units
Earth's Volume (V⊕)
The volume of Earth is approximately 1.08321 × 10¹² cubic kilometers, representing the space occupied by the entire planet. This massive number underpins calculations in geology, seismology, planetary science, and orbital mechanics. For example, Earth's volume helps determine average density, which in turn informs scientists about the planet's interior structure—its crust, mantle, and core. The Earth's volume also allows comparison to other planets, moons, and exoplanets, providing insight into their likely composition, habitability, and geological evolution. Measuring the volume of Earth is a triumph of scientific precision, relying on satellite geodesy, mathematical modeling, and centuries of accumulated observation.
Acre-Foot (ac*ft)
An acre-foot represents the volume of water needed to cover one acre of land to a depth of one foot—approximately 1,233.48 cubic meters or 325,851 gallons. This unit is foundational in water resource management throughout the western United States, where large-scale irrigation, reservoir planning, and drought analysis depend on acre-foot measurements. For example, major reservoirs like Lake Mead and Lake Powell hold billions of acre-feet. In agriculture, irrigation districts track water rights and allocations using acre-feet, making it a key component of water law. Its scale is ideal for representing the enormous water needs associated with farming, urban expansion, and environmental preservation.