It sounds like it should be the simplest question in the kitchen: how many ounces in a pint? But the pint is one of the great tricksters of measurement. The United States and the United Kingdom — the two countries most likely to hand you a pint — define it differently, and the gap between their pints is a full 25%. Pour a “pint” of beer in London and you get a quarter more than a “pint” in New York.
This guide sorts out the US pint, the imperial pint, and the lesser-known dry pint, with the conversions, tables, and real-world examples you need to never get caught out.
The Short Answer: 16 oz (US) or 20 oz (Imperial)
- US liquid pint: 16 US fluid ounces = 473.176 ml
- Imperial pint (UK): 20 imperial fluid ounces = 568.261 ml
- US dry pint: about 18.6 US fluid ounces of volume = 550.610 ml (used for produce like berries)
In the United States, the pint you meet in recipes, milk cartons, and ice cream tubs is the liquid pint: 16 fluid ounces, 2 cups, half a quart. In the UK, the pint you meet in pubs is the imperial pint: 20 fluid ounces — the one enshrined in the classic British beer glass. The pint on Wikipedia traces how the two definitions diverged after American independence.
Why Are There Two Different Pints?
Blame history. Before the 19th century, Britain itself had a chaos of regional pints — the ale pint, the wine pint, and others, all different sizes. In 1824, Britain swept them away and standardized on a single imperial pint defined as one-eighth of an imperial gallon: 20 imperial fluid ounces.
The United States, by then independent, kept the older English wine-gallon system it had inherited. The US liquid pint is one-eighth of a US liquid gallon: 16 US fluid ounces. Both countries then defined their fluid ounces slightly differently too — a US fluid ounce is about 29.57 ml while an imperial fluid ounce is about 28.41 ml — which is why the math is not as simple as “20 vs 16.”
The result, in millilitres:
| Measure | Fluid ounces | Millilitres |
|---|---|---|
| US liquid pint | 16 US fl oz | 473.176 ml |
| Imperial pint | 20 imperial fl oz | 568.261 ml |
| US dry pint | — (volume measure) | 550.610 ml |
So an imperial pint is exactly 25% larger than a US pint in fluid-ounce count (20 vs 16), and about 20% larger in actual millilitres (568 vs 473) because the ounces themselves differ slightly. Confusing? A little. But now you know.
The US Dry Pint: The Third Pint Nobody Expects
American cooks occasionally meet a third pint: the US dry pint, used for measuring dry goods like berries, tomatoes, and other produce. It is a unit of volume, not weight — defined as 33.6 cubic inches (550.6 ml) — and it equates to roughly 18.6 US fluid ounces of volume.
You will recognize it as the little green cardboard punnet of blueberries or cherry tomatoes at the grocery store — that container is one dry pint. It does not convert neatly to fluid ounces because it was never meant to hold liquid, but if you filled one with water it would hold about 18.6 fluid ounces. The UK does not use dry pints at all; produce there is sold by weight in grams.
Pints in the Kitchen: Cups, Quarts, and Gallons
The pint sits in the middle of a tidy ladder of US kitchen measures. Memorize the ladder and you will rarely need a conversion chart:
| Unit | Fluid ounces | Cups | Millilitres |
|---|---|---|---|
| 1 cup | 8 fl oz | 1 | 236.6 ml |
| 1 pint | 16 fl oz | 2 | 473.2 ml |
| 1 quart | 32 fl oz | 4 | 946.4 ml |
| 1 gallon | 128 fl oz | 16 | 3,785.4 ml |
The classic mnemonic American cooks learn as children still works: “A pint’s a pound the world around” — a pint of water weighs almost exactly one pound (16 ounces by weight, 16 fluid ounces by volume). Water is the convenient exception where fluid ounces and weight ounces align; for anything denser or lighter, they diverge, which is why our guide to converting a half ounce to grams matters for ingredients measured by weight.
The imperial ladder is similar but roomier: an imperial pint is 20 imperial fluid ounces, an imperial quart is 40, and an imperial gallon is 160. Same structure, bigger rungs.
Real-World Pints: Beer, Milk, and Ice Cream
The pub pint
The most culturally loaded pint is the British pub pint: 20 imperial fluid ounces (568 ml) of beer, served in the iconic handled or conical glass, filled to the brim or to a line mark. In the US, a “pint glass” at a bar typically holds 16 US fluid ounces — though American “shaker pints” often hold a bit less than that when filled to a comfortable drinking level, a long-running pet peeve of beer enthusiasts.
The milk pint
In the US, milk is sold in pints (16 fl oz), quarts, half-gallons, and gallons. The pint carton is the single-serving size you remember from school cafeterias. In the UK, milk went metric for retail but the pint survived culturally — many Britons still think of milk in pints even when the bottle says 568 ml.
The ice cream pint
The standard premium ice cream tub in the US — the Ben & Jerry’s or Häagen-Dazs size — is one US pint: 16 fluid ounces. It is a rare case where the container size became a cultural unit of its own (“a pint of ice cream” as the canonical breakup comfort food). Note that ice cream is sold by volume, so a pint of densely packed gelato weighs more than a pint of airy soft-serve — same pint, different weight.
Common Pint Conversions at a Glance
- 1 US pint = 16 fl oz = 2 cups = 473 ml = 0.5 quart = 0.125 gallon
- 1 imperial pint = 20 imperial fl oz = 568 ml = 0.5 imperial quart = 0.125 imperial gallon
- 1 imperial pint ≈ 1.2 US pints (about 20% more)
- 1 US pint ≈ 0.83 imperial pints
- 1 dry pint (US) ≈ 18.6 US fl oz of volume = 550.6 ml
- Half a US pint = 8 fl oz = 1 cup (the “half pint” of cream or milk)
For the next step up the liquid ladder, the cup as a unit of measurement on Wikipedia shows how the US cup, imperial cup, and metric cup all differ — the same kind of transatlantic split, one rung down.
How to Tell Which Pint a Recipe Means
Nine times out of ten, context answers the question:
- American recipe blog or cookbook: US liquid pint, 16 fl oz. If it lists cups alongside, you can double-check — 2 cups always means a US pint.
- British recipe or pub context: imperial pint, 20 fl oz. British recipes increasingly give millilitres too, which removes all doubt.
- Produce / farmers’ market: US dry pint (the punnet), a volume measure — do not substitute 16 fluid ounces of liquid.
- When in doubt: check whether the source also uses cups (American) or millilitres (likely British/metric). And remember that a 25% error in liquid is the difference between a perfect batter and a soupy mess.
Frequently Asked Questions
How many oz is a pint?
A US liquid pint is 16 fluid ounces; an imperial (UK) pint is 20 fluid ounces. The US dry pint, used for produce, is a volume measure equal to about 18.6 fluid ounces.
How many ounces are in a British pint?
20 imperial fluid ounces, which is 568 ml. That is 25% more fluid ounces than a US pint — so a British pint of beer is a meaningfully bigger drink than an American one.
How many cups are in a pint?
Two US cups make one US pint (2 × 8 fl oz = 16 fl oz). In imperial measure, a pint is also 2 imperial cups by the same logic, but the imperial cup itself is larger (10 imperial fl oz).
Is a pint 16 or 20 ounces?
Both — it depends on the system. The US pint is 16 US fluid ounces; the imperial pint is 20 imperial fluid ounces. Check whether your source is American or British.
What is a dry pint?
A US unit of volume (33.6 cubic inches / 550.6 ml) used for produce like berries and cherry tomatoes — the standard supermarket punnet. It is not a liquid measure, though it holds about 18.6 fluid ounces if filled with water.
Does “a pint’s a pound the world around” actually work?
For water and water-like liquids in the US system, yes: a pint (16 fl oz) of water weighs very close to 16 ounces (one pound). It does not hold for the imperial pint (20 fl oz of water weighs about 1.25 lb) or for anything much denser or lighter than water, like honey or whipped cream.
Sixteen ounces or twenty — now you know which is which, why they differ, and how to spot the right one in any recipe. The pint’s split personality is a small reminder that measurement is history as much as math. And if your recipe works by weight rather than volume, our half-ounce to grams conversion will keep your baking precise.
