Tuns to US Fluid Ounces (tun to fl oz)
1 tun equals 32,256 US fluid ounces exactly.
How to convert tuns to US fluid ounces
To convert tuns to US fluid ounces, multiply the number of tuns by 32,256. This factor is exact. To go the other way, multiply US fluid ounces by 0.00003100198413 (rounded).
US fluid ounces = tuns × 32,256
Example: 10 tuns = 322,560 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
Tun (tun)
252 US gallons (954 L), four hogsheads or two pipes.. A very large wine cask, related to the word 'ton'.
From Old English tunne and Medieval Latin tunna, the tun gave English both a cask and, through its close cousin ton, a way of rating ships by how many tuns of wine they could carry. The spellings were once used interchangeably, and a full tun of wine weighs about one long ton of 2,240 pounds.
Its size drifted. The tun began at 256 wine gallons and was cut to 252 before the fifteenth century, a number divisible by seven and many smaller integers. A customs paper of 1507 gives 240 gallons. The Queen Anne gallon of 231 cubic inches, adopted in 1706, made a tun roughly a cylinder 42 inches across and high, and the 1824 imperial system redefined it as 210 imperial gallons.
The US figure of 252 gallons is about 953.9 litres (953.92 L as used here), while the imperial tun is only about 0.08 percent larger. It tops the English wine ladder: two butts, three puncheons, four hogsheads or six tierces, with the same arithmetic working in either gallon.
1 tun = 953.9237696 liters (approximately).
Sources: Wikipedia: Tun (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 tuns (reverse)
- Tuns to liters
- Tuns to milliliters
- Tuns to US gallons
- Tuns 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.