Convert Barrel (US) (bbl (US)) to Fluid Ounce (US) (fl oz (US)) instantly.
About these units
Barrel (US) (bbl (US))
The US barrel is a unit with multiple definitions depending on the industry, though the most common general-purpose US barrel is 31.5 US gallons, used historically for dry goods, ale, and various agricultural products. In practice, the US barrel arose from traditional cask-making, where wooden barrels of different shapes were used for storage and transport. Because their capacity varied widely, different industries standardized the barrel at different volumes. Over time, manufacturers and commercial sectors adopted specific barrel sizes for consistency. Today, the US barrel appears in brewing, winemaking, certain agricultural commodities, and historical documents describing early American commerce. Its varied legacy makes it a fascinating example of an evolving unit shaped by economic necessity and craftsmanship.
Fluid Ounce (US) (fl oz (US))
A US fluid ounce is approximately 29.5735 milliliters. It is not a unit of weight, despite sometimes being confused with the avoirdupois ounce. In beverage serving sizes, cooking, and pharmaceuticals, the fluid ounce provides a flexible unit for small to medium volumes. It serves as the basis for bartending measurements, packaging labels, and nutritional information. Its precise value derives from the US gallon, making the fluid ounce a key link in the US customary volume system.