US Liquid Barrels to US Fluid Ounces (bbl (US) to fl oz)
1 US liquid barrel equals 4,032 US fluid ounces exactly.
How to convert US liquid barrels to US fluid ounces
To convert US liquid barrels to US fluid ounces, multiply the number of US liquid barrels by 4,032. This factor is exact. To go the other way, multiply US fluid ounces by 0.000248015873 (rounded).
US fluid ounces = US liquid barrels × 4,032
Example: 10 US liquid barrels = 40,320 US fluid ounces.
Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.
About these units
US Liquid Barrel (bbl (US))
31.5 US gallons (119.24 L). The standard US barrel for liquids such as beer.
Most American fluid barrels are set at 31.5 US gallons, which works out to about 119 litres (119.24 L as used here). That is a half of the old 63 gallon wine hogshead, so the liquid barrel is a direct descendant of the English wine-gallon system rather than of any grain measure. Beer is the best known use, though the common US beer keg barrel is slightly smaller at 31 gallons, about 117 litres.
The English name came from French baril. Colonial and later American law treated the barrel as a trade unit for wine, beer, cider and spirits, but other liquids, from molasses to petroleum, were sold in containers of other sizes, so the phrase barrel never meant a single universal amount.
Confusion with its neighbours is common. It is roughly 3 percent larger than the dry barrel of 7,056 cubic inches, and well short of the 42 gallon barrel used for oil. The 63 gallon hogshead is exactly twice its size.
1 US liquid barrel = 119.2404712 liters (approximately).
Sources: Wikipedia: Barrel (unit); Wikipedia: Hogshead
US Fluid Ounce (fl oz)
One 128th of a US gallon, 29.5735 mL. Not the same as the weight ounce, and about 4% larger than the imperial fluid ounce.
Fluid ounce began as an attempt to link volume to weight: the volume occupied by one ounce of some substance, such as wine in England or water in Scotland. Definitions varied by region and by liquid. When Britain defined its imperial gallon in 1824 as the space of ten pounds of water, the imperial fluid ounce came out so that an ounce of water weighs about one avoirdupois ounce. The US fluid ounce followed a different path and comes from the older wine gallon.
The US fluid ounce is exactly 1/128 of a US gallon, 29.5735295625 milliliters, about 4 percent bigger than the imperial one at 28.4130625 milliliters. American nutrition labels use yet another figure, treating one fluid ounce as 30 milliliters, a convenient rounding for serving sizes. The name is a trap, because a fluid ounce measures space while a weight ounce measures mass. A US fluid ounce of water weighs a bit more than an ounce of weight, while a fluid ounce of honey weighs considerably more.
1 US fluid ounce = 0.02957352956 liters (approximately).
Sources: Wikipedia: Fluid ounce; NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures
Related conversions
- US fluid ounces to US liquid barrels (reverse)
- US liquid barrels to liters
- US liquid barrels to milliliters
- US liquid barrels to US gallons
- US liquid barrels to US cups
- Liters to US fluid ounces
- Milliliters to US fluid ounces
- US gallons to US fluid ounces
- US cups to US fluid ounces
- Cubic meters to US fluid ounces
- Cubic centimeters to US fluid ounces
- US quarts to US fluid ounces
- US pints to US fluid ounces
- US tablespoons to US fluid ounces
- US teaspoons to US fluid ounces
- Metric cups to US fluid ounces
- Metric tablespoons to US fluid ounces
See all volume units.