Amphorae to US Fluid Ounces (amphora to fl oz)
1 amphora equals 885.9273948 US fluid ounces (rounded).
How to convert amphorae to US fluid ounces
To convert amphorae to US fluid ounces, multiply the number of amphorae by 885.9273948. The factor is rounded to 10 significant digits. To go the other way, multiply US fluid ounces by 0.00112876067 (rounded).
US fluid ounces = amphorae × 885.9273948
Example: 10 amphorae = 8,859.273948 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.
Approximate value. Standards for the amphora varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.
About these units
Amphora (amphora)
The 'amphora quadrantal', defined as one cubic Roman foot (about 26.2 L). The standard Roman liquid measure for wine and oil.
Greek amphoreus, shortened from amphiphoreus, meant carried on both sides, a reference to the two handles of the clay jar that gave the unit its name. The Romans took the word over during the period of Hellenization, and Cato the Younger is the earliest known writer to use it. Amphorae carried wine, olive oil, garum, grain and olives around the Mediterranean, and most stood about 45 cm tall.
As a measure, the Roman amphora is properly the amphora quadrantal, defined as one cubic pes, the Roman foot of roughly 296 mm. Wikipedia's table gives 26.2 L for it, while the text of the same article rounds the cube to about 25.9 L, so the figure used here is 26.2 L and the true value is uncertain by a few percent. It equals 8 congii or 48 sextarii. Another Wikipedia article mentions a wine amphora of about 39 L, which shows that the jar and the legal unit were not always the same size. In modern terms the quadrantal is close to 7 US gallons.
1 amphora = 26.2 liters (approximately).
Sources: Wikipedia: Ancient Roman units of measurement; Wikipedia: Amphora
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 amphorae (reverse)
- Amphorae to liters
- Amphorae to milliliters
- Amphorae to US gallons
- Amphorae 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.