Shtofs to US Cups (shtof to cup)

1 shtof equals 5.198656612 US cups (rounded).

1 shtof = 5.198656612 US cups

How to convert shtofs to US cups

To convert shtofs to US cups, multiply the number of shtofs by 5.198656612. The factor is rounded to 10 significant digits. To go the other way, multiply US cups by 0.1923573867 (rounded).

US cups = shtofs × 5.198656612

Example: 10 shtofs = 51.98656612 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 shtof varied by place and period, so this converter uses the most commonly cited value. Treat results as estimates, not exact figures.

About these units

Shtof (shtof)

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

One tenth of a vedro, about 1.23 L. A traditional Russian bottle size for spirits.

Shtof comes from the German word Stof, which Russian used for a large goblet or flagon. The name was then given both to a squat, four-sided green glass bottle with a short neck and to the liquid measure that bottle held. Taverns known as shtof shops sold vodka and wine in sealed bottles of this size until the metric system arrived.

The size depended on the period. The standard shtof of the 19th century was one tenth of a vedro, or about 1.23 L, equal to ten charkas. An older shtof from before the 19th century held about 1.54 L, and the eight-sided shtof was one eighth of a vedro, about 1.537 L. The figure used here is the standard one tenth of a vedro, which equals 75 cubic inches.

English-language sources say little about the shtof. The English Wikipedia table of Russian measures lists the word as flagon but gives no volume, so the figures above rest mainly on the Russian Wikipedia article. In modern terms a standard shtof is a little more than a litre and a quarter, close to a large wine bottle.

1 shtof = 1.229941 liters (approximately).

Sources: Russian Wikipedia: Штоф (единица объёма); Wikipedia: Obsolete Russian units of measurement

US Cup (cup)

US customaryCurrent unit

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

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