Tō to US Fluid Ounces (tō to fl oz)
1 tō equals 609.9734674 US fluid ounces (rounded).
How to convert tō to US fluid ounces
To convert tō to US fluid ounces, multiply the number of tō by 609.9734674. The factor is rounded to 10 significant digits. To go the other way, multiply US fluid ounces by 0.00163941557 (rounded).
US fluid ounces = tō × 609.9734674
Example: 10 tō = 6,099.734674 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
Tō (tō)
Ten shō, about 18.039 L.
With ten shō to the tō, this is the largest of the three grain and liquor measures of the Japanese system, equal to 24,010/1331 L, about 18.04 L, the figure used here. That is close to 4.77 US gallons, enough to fill a large barrel-sized pail.
It sits at the top of a chain that runs 10 gō to 1 shō and 10 shō to 1 tō, a purely decimal ladder, unlike many traditional systems.
Japan's 1891 law fixed the measure exactly by tying it to the new Kyoto masu standard. That standard dated from the Edo period, when the shogunate chose the new Kyoto masu in 1669, and the law simply converted it to metric terms. The tō lost legal status in trade after the 1959 Measurement Act.
1 tō = 18.03906837 liters (approximately).
Sources: Wikipedia: Japanese units of measurement; Japanese Wikipedia: Sho
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 tō (reverse)
- Tō to liters
- Tō to milliliters
- Tō to US gallons
- Tō 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.