Charkas to US Cups (charka to cup)
1 charka equals 0.5198656612 US cups (rounded).
How to convert charkas to US cups
To convert charkas to US cups, multiply the number of charkas by 0.5198656612. The factor is rounded to 10 significant digits. To go the other way, multiply US cups by 1.923573867 (rounded).
US cups = charkas × 0.5198656612
Example: 10 charkas = 5.198656612 US cups.
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)
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 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
Related conversions
- US cups to charkas (reverse)
- Charkas to liters
- Charkas to milliliters
- Charkas to US gallons
- Charkas to US fluid ounces
- Liters to US cups
- Milliliters to US cups
- US gallons to US cups
- US fluid ounces to US cups
- Cubic meters to US cups
- Cubic centimeters to US cups
- US quarts to US cups
- US pints to US cups
- US tablespoons to US cups
- US teaspoons to US cups
- Metric cups to US cups
- Metric tablespoons to US cups
See all volume units.