Charkas to US Gallons (charka to gal)

1 charka equals 0.03249160382 US gallons (rounded).

1 charka = 0.03249160382 US gallons

How to convert charkas to US gallons

To convert charkas to US gallons, multiply the number of charkas by 0.03249160382. The factor is rounded to 10 significant digits. To go the other way, multiply US gallons by 30.77718186 (rounded).

US gallons = charkas × 0.03249160382

Example: 10 charkas = 0.3249160382 US gallons.

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 charka varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.

About these units

Charka (charka)

Russian (Imperial)Historical unit (no longer in standard use)Approximate value

One hundredth of a vedro, about 123 mL. The traditional Russian shot of vodka.

Charka is a Russian word for a small drinking cup, and the Russian Wikipedia article says the word reached Russian from Turkish. Ornate silver and enamelled charkas for strong spirits were part of everyday Russian life in the 17th and 18th centuries, and the oldest example in the Kremlin Armory dates from 1515.

As a measure, the charka was one hundredth of a vedro, or 7.5 cubic inches, which comes to about 123 mL. It sat in a chain of small liquor measures: half a charka was a shkalik of about 61.5 mL, two charkas made a chetushka of about 246 mL, and ten made a kruzhka of about 1.23 L. The English Wikipedia table of Russian units uses these same fractions of the vedro.

Russia fixed these measures relative to English cubic inches under Peter the Great, so the charka is a precise figure on paper even if real cups varied. The metric system replaced it in the 1920s, yet the word survives as the normal Russian name for a shot glass, and a charka is still close to a double shot today.

1 charka = 0.1229941 liters (approximately).

Sources: Wikipedia: Obsolete Russian units of measurement; Russian Wikipedia: Чарка

US Gallon (gal)

US customaryCurrent unit

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

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