Convert Stere (st (vol)) to Acre-Foot (ac*ft) instantly.
About these units
Stere (st (vol))
A stere is exactly 1 cubic meter, but with a particular association: it was defined specifically for measuring stacked firewood. Logs are irregular, so the stere measures the approximate space that a cubic meter of stacked wood occupies (including air gaps). The stere is still used in France and some other European regions as part of forestry traditions. Firewood sales often use the stere to maintain consistency with historical practices. The stere's survival shows how volume measurement often reflects cultural and economic tradition rather than purely scientific convenience, especially in long-standing industries like wood harvesting.
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.