US Fluid Ounces to US Liquid Barrels (fl oz to bbl (US))
1 US fluid ounce equals 0.000248015873 US liquid barrels (rounded).
How to convert US fluid ounces to US liquid barrels
To convert US fluid ounces to US liquid barrels, multiply the number of US fluid ounces by 0.000248015873. The factor is rounded to 10 significant digits. To go the other way, multiply US liquid barrels by 4,032.
US liquid barrels = US fluid ounces × 0.000248015873
Example: 10 US fluid ounces = 0.00248015873 US liquid barrels.
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 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
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
Related conversions
- US liquid barrels to US fluid ounces (reverse)
- US fluid ounces to liters
- US fluid ounces to milliliters
- US fluid ounces to US gallons
- US fluid ounces to US cups
- US fluid ounces to cubic meters
- US fluid ounces to cubic centimeters
- US fluid ounces to US quarts
- US fluid ounces to US pints
- US fluid ounces to US tablespoons
- US fluid ounces to US teaspoons
- US fluid ounces to metric cups
- US fluid ounces to metric tablespoons
- Liters to US liquid barrels
- Milliliters to US liquid barrels
- US gallons to US liquid barrels
- US cups to US liquid barrels
See all volume units.