US Fluid Ounces to Sextarii (fl oz to sextarius)
1 US fluid ounce equals 0.05418051218 sextarii (rounded).
How to convert US fluid ounces to sextarii
To convert US fluid ounces to sextarii, multiply the number of US fluid ounces by 0.05418051218. The factor is rounded to 10 significant digits. To go the other way, multiply sextarii by 18.45682072 (rounded).
sextarii = US fluid ounces × 0.05418051218
Example: 10 US fluid ounces = 0.5418051218 sextarii.
Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.
Approximate value. Standards for the sextarius varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.
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
Sextarius (sextarius)
One 48th of an amphora, about 0.55 L. The standard Roman liquid measure, a little under an imperial pint.
Literally a sixth, the sextarius was one sixth of a congius and one forty-eighth of an amphora quadrantal, which means one forty-eighth of a cubic Roman foot. It was the working core of Roman capacity measure, since both the liquid and the dry tables were built on it.
Its size is more contested than most. Wikipedia's text calculates about 540.3 mL from the cubic foot, its table gives 546 mL, which is the figure used here, and archaeological vessels fall between 500 and 580 mL, with no two surviving examples exactly alike. Wikipedia compares it to about 95 percent of an imperial pint, which is why it is often called a Roman pint. Smaller units were fractions of it, such as the cyathus at one twelfth, while the modius was 16 sextarii.
1 sextarius = 0.5458333333 liters (approximately).
Sources: Wikipedia: Ancient Roman units of measurement
Related conversions
- Sextarii 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 sextarii
- Milliliters to sextarii
- US gallons to sextarii
- US cups to sextarii
See all volume units.