Tō to US Gallons (tō to gal)
1 tō equals 4.765417714 US gallons (rounded).
How to convert tō to US gallons
To convert tō to US gallons, multiply the number of tō by 4.765417714. The factor is rounded to 10 significant digits. To go the other way, multiply US gallons by 0.209845193 (rounded).
US gallons = tō × 4.765417714
Example: 10 tō = 47.65417714 US gallons.
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 Gallon (gal)
Exactly 231 cubic inches or 3.785411784 liters (128 US fluid ounces). About 17% smaller than the imperial gallon.
The US gallon is a survivor of English wine trade. Around 1706, a statute in Queen Anne's reign fixed the wine gallon at exactly 231 cubic inches, settling confusion among the competing gallons for wine, ale and corn. British colonies in North America used that wine gallon, and in 1824 Britain replaced all its gallons with a new imperial one while the United States kept the old measure. It was adopted as the legal US standard in 1836 and is still defined as exactly 231 cubic inches, or 3.785411784 liters.
That makes the US gallon about 17 percent smaller than the imperial gallon, a difference that explains why American and British fuel-economy figures cannot be compared directly. Everyday uses are milk jugs, paint cans and gasoline pumps. One gallon divides evenly into four quarts, eight pints, sixteen cups and 128 fluid ounces. A gallon of water weighs a little over 8 pounds, an easy figure to remember when loading a car with water jugs.
1 US gallon = 3.785411784 liters (exactly).
Sources: Wikipedia: Gallon; NIST SP 811, Appendix B.8: conversion factors for volume
Related conversions
- US gallons to tō (reverse)
- Tō to liters
- Tō to milliliters
- Tō to US cups
- Tō to US fluid ounces
- Liters to US gallons
- Milliliters to US gallons
- US cups to US gallons
- US fluid ounces to US gallons
- Cubic meters to US gallons
- Cubic centimeters to US gallons
- US quarts to US gallons
- US pints to US gallons
- US tablespoons to US gallons
- US teaspoons to US gallons
- Metric cups to US gallons
- Metric tablespoons to US gallons
See all volume units.