US Pint

Formal Definition

The US liquid pint (symbol: pt) is a unit of volume in the US customary system equal to one eighth of a US gallon, one half of a US quart, or exactly 28.875 cubic inches. This equals approximately 473.176473 milliliters (0.473176 liters). The pint is divided into 2 US cups or 16 US fluid ounces.

The US pint is significantly smaller than the imperial pint used in the United Kingdom and other Commonwealth countries. The imperial pint equals 568.261 mL — approximately 20% larger than the US pint. This difference is directly proportional to the difference between the US and imperial gallons and affects the volume of a "pint of beer" in the two countries.

A Familiar Size

The pint is one of the most recognizable volume measurements in American life. A "pint" of ice cream, a "pint" of blueberries, and a "pint" of beer are all culturally familiar concepts. The 16-ounce pint glass is standard in American bars and restaurants.

Old French Origins

The word "pint" comes from the Old French "pinte," which may derive from the Medieval Latin "pincta" or "picta," meaning "painted" — possibly referring to a painted mark on a container indicating the pint level. An alternative etymology traces it to the Vulgar Latin "pinta," a variant of "picta," referring to a mark or line painted on a measuring vessel.

The word entered Middle English in the 14th century and has been in continuous use since. The pint has always been defined in relation to the gallon (1/8 gallon) or the quart (1/2 quart), though its absolute volume has changed as gallon definitions evolved over the centuries.

English Ancestry

The pint descended from the English wine pint, which was one eighth of the wine gallon. When the wine gallon was standardized at 231 cubic inches in 1706, the wine pint became 28.875 cubic inches. American colonists used this measure, and the United States retained it after independence.

The 1824 UK Divergence

When Britain adopted the imperial gallon in 1824, the imperial pint became one eighth of the new, larger gallon — 568.261 mL. This created the lasting difference between US and British pints, a difference that particularly affects the beer trade and cultural perceptions of what a "pint" should be.

Cultural Evolution in America

The pint became associated with specific products in American culture. Pint-sized containers became standard for ice cream (though the industry has increasingly shifted to 14-ounce and other non-standard sizes). Pint glasses became the standard for serving draft beer. "A pint" became synonymous with a serving of beer in American bar culture, parallel to the same usage in British culture (though with different volumes).

Beer and Beverages

The pint glass is the standard serving vessel for draft beer in American bars and restaurants. A US pint of beer is 16 fluid ounces (473 mL). Many craft breweries serve beer in pint glasses, and "a pint" is a standard order at any American bar. However, some establishments serve in smaller glasses without disclosure — a practice known as the "cheater pint."

Ice Cream

Ice cream has traditionally been sold in pint containers in the US. Premium ice cream brands (Ben & Jerry's, Haagen-Dazs) are iconic in their pint packaging. However, in recent years, some brands have reduced their containers to 14 ounces while maintaining pint-like packaging — a practice that has attracted consumer criticism.

Cooking

American recipes use pints for medium liquid quantities. "One pint of cream," "a pint of cherry tomatoes" (dry pint), or "half a pint of sour cream" are common recipe instructions. Measuring cups typically show pint markings (2 cups = 1 pint).

Fresh Produce

Fresh berries and small produce items are often sold in pint containers at American markets and grocery stores. A "pint" of strawberries, blueberries, or cherry tomatoes uses the dry pint measure (approximately 550 mL), which is slightly larger than the liquid pint.

At the Bar

Ordering a pint of beer is the quintessential American bar experience. The 16-ounce pint glass — sometimes called a "shaker pint" due to its shape — is the most common beer glass in American bars. Asking for "a pint" gets you 16 fluid ounces of draft beer. Some establishments use tulip pints or imperial pint glasses for specialty beers.

At the Grocery Store

Pint containers are everywhere in American grocery stores: pints of ice cream in the freezer section, pints of berries in the produce section, pints of half-and-half and cream in the dairy case. A pint of heavy cream weighs about 1 pound due to cream's density being close to water's.

Blood Donation

A standard whole blood donation in the US is approximately one pint (about 473 mL). The phrase "give a pint" is deeply associated with blood donation in American culture. The average adult has approximately 10 pints of blood.

Colloquial Usage

The pint appears in American idioms: "You can't get a quart out of a pint pot" (British English, meaning you can't exceed capacity). In size descriptions, "pint-sized" means small — a "pint-sized kid" is a small child.

Not Used in Science

The pint is not used in scientific contexts in any country. Scientists use liters and milliliters. The pint appears in no scientific journals, research protocols, or engineering standards — even American science uses metric units exclusively.

Medical Context

The pint survives in American medical terminology primarily in blood banking. A "unit" of whole blood is approximately one pint (though the precise volume varies from 450-500 mL). This usage is informal rather than technical — medical records use milliliters for precision.

United States

The US pint (16 fl oz, 473 mL) is the standard serving size for draft beer and the standard size for ice cream containers. It is used daily in cooking, shopping, and restaurant dining.

United Kingdom

The imperial pint (20 imp fl oz, 568 mL) is legally required for draft beer and cider in British pubs. It is about 20% larger than the US pint. The crown-stamped pint glass is a symbol of British pub culture.

Canada

Canada officially uses the metric system and sells beverages in milliliters. However, beer at Canadian bars is sometimes served in 'pints' — the size varies by province and may be closer to the US or imperial pint depending on local custom.

Rest of the World

The pint is not used as a standard measure outside English-speaking countries, though 'pint' is understood internationally as a beer serving size due to the global influence of British and American pub culture. In many countries, a 'pint' at a bar may not conform to any precise definition.