Convert Cubic Decimeter (dm³) to Acre-Foot (ac*ft) instantly.
About these units
Cubic Decimeter (dm³)
A cubic decimeter is defined as 1 liter, since it is the volume of a cube 10 centimeters per side. Though equivalent to the liter, dm³ is often used in engineering and physics because it fits neatly into the SI geometric framework. This unit is convenient when working with densities (kg/dm³), where the equivalence of 1 dm³ and 1 L simplifies many calculations involving fluids and materials. While the liter dominates everyday usage, the cubic decimeter is favored in technical contexts where a strong geometric interpretation is needed—for example, in tank sizing, volumetric flow calculations, or experiments involving water displacement.
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.