US Cups to Tō (cup to tō)
1 US cup equals 0.01311532456 tō (rounded).
How to convert US cups to tō
To convert US cups to tō, multiply the number of US cups by 0.01311532456. The factor is rounded to 10 significant digits. To go the other way, multiply tō by 76.24668342 (rounded).
tō = US cups × 0.01311532456
Example: 10 US cups = 0.1311532456 tō.
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 Cup (cup)
One sixteenth of a US gallon, 236.588 mL (8 US fluid ounces). The standard US recipe cup.
Cups began as household drinking vessels, not scientific units, which is why they remain the messiest measures in the kitchen. The US customary cup was defined by slicing up the gallon: half a pint, or eight US fluid ounces, about 236.6 milliliters. Unlike the larger units, nobody ever fixed it to a physical vessel, so it exists only as a fraction of the gallon.
The customary cup is not the only American cup. For nutrition labels, US regulation defines a cup as exactly 240 milliliters, a rounder figure that sits slightly above the customary size. Packaged foods therefore list a serving in the legal cup while a measuring cup from the hardware store follows the customary definition. The gap is 3.4 milliliters, which hardly matters for soup but can matter in baking. Cup measures also hide the weight of dry ingredients, since a cup of sifted flour and a cup of packed flour differ substantially, which is why much of the world prefers grams.
1 US cup = 0.2365882365 liters (exactly).
Sources: Wikipedia: Cup (unit); NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures
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
Related conversions
- Tō to US cups (reverse)
- US cups to liters
- US cups to milliliters
- US cups to US gallons
- US cups to US fluid ounces
- US cups to cubic meters
- US cups to cubic centimeters
- US cups to US quarts
- US cups to US pints
- US cups to US tablespoons
- US cups to US teaspoons
- US cups to metric cups
- US cups to metric tablespoons
- Liters to tō
- Milliliters to tō
- US gallons to tō
- US fluid ounces to tō
See all volume units.