Convert Hogshead (hogshead) to Acre-Foot (US Survey) (ac*ft (US)) instantly.
About these units
Hogshead (hogshead)
A hogshead is a traditional barrel volume whose size varied by commodity, region, and era. In British and colonial American contexts, a hogshead for beer or ale was commonly 54 imperial gallons, while for wine it was 63 gallons. Hogsheads were central to colonial commerce, especially in the tobacco trade, where standardized hogsheads—large wooden barrels—became essential for shipping cured leaves across the Atlantic. These giant casks often doubled as storage containers, shipping crates, and even temporary furniture. While the hogshead is not used in modern measurement, it occupies a prominent place in historical literature, trade records, and maritime archaeology. Its enduring cultural footprint reflects the importance of cooperage (barrel-making) in pre-industrial economies.
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.