US Gallons to Sextarii (gal to sextarius)
1 US gallon equals 6.935105558 sextarii (rounded).
How to convert US gallons to sextarii
To convert US gallons to sextarii, multiply the number of US gallons by 6.935105558. The factor is rounded to 10 significant digits. To go the other way, multiply sextarii by 0.1441939119 (rounded).
sextarii = US gallons × 6.935105558
Example: 10 US gallons = 69.35105558 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 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
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 gallons (reverse)
- US gallons to liters
- US gallons to milliliters
- US gallons to US cups
- US gallons to US fluid ounces
- US gallons to cubic meters
- US gallons to cubic centimeters
- US gallons to US quarts
- US gallons to US pints
- US gallons to US tablespoons
- US gallons to US teaspoons
- US gallons to metric cups
- US gallons to metric tablespoons
- Liters to sextarii
- Milliliters to sextarii
- US cups to sextarii
- US fluid ounces to sextarii
See all volume units.