Imperial fluid ounce to US liquid pint
imp fl oz
pt
Conversion History
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Quick Reference Table (Imperial fluid ounce to US liquid pint)
| Imperial fluid ounce (imp fl oz) | US liquid pint (pt) |
|---|---|
| 0.5 | 0.03002374813749707546642883972 |
| 1 | 0.06004749627499415093285767944 |
| 2 | 0.12009499254998830186571535888 |
| 5 | 0.3002374813749707546642883972 |
| 10 | 0.6004749627499415093285767944 |
| 20 | 1.2009499254998830186571535888 |
About Imperial fluid ounce (imp fl oz)
The imperial fluid ounce (imp fl oz) is a unit of volume equal to one twentieth of an imperial pint, approximately 28.413 milliliters. It is used in the United Kingdom and Commonwealth countries, though metric units have replaced it in most commercial contexts. The imperial fluid ounce is slightly smaller than the US fluid ounce (29.574 mL). UK spirits measures are now defined by law in 25 mL and 35 mL metric measures, which do not align exactly with the imperial fluid ounce.
A single spirits measure in a UK bar is 25 mL or 35 mL — close to, but not exactly, one imperial fluid ounce (28.41 mL).
About US liquid pint (pt)
The US liquid pint (pt) is a unit of volume equal to 16 US fluid ounces, approximately 473.2 milliliters. It is used for beverages, dairy products, and cooking in the United States. A US pint is smaller than the imperial pint (568 mL) used in the UK and Ireland — a difference that affects pub serving sizes. Ice cream is traditionally sold in US pint (473 mL) or half-pint containers. The US also has a dry pint (550.6 mL) for measuring dry goods, distinct from the liquid pint.
A US pint glass at a bar holds 16 fl oz (473 mL). A standard carton of blueberries or strawberries is sold by the pint.
Imperial fluid ounce – Frequently Asked Questions
Why did the UK abandon the fluid ounce for spirits but keep the pint for beer?
When the UK metricated in the 1990s, spirits measures were switched to 25 mL and 35 mL because publicans needed precise, legally enforceable pour sizes — and optic dispensers were easy to replace with metric ones. Beer, however, had enormous cultural resistance: the "pint" is deeply embedded in British pub identity, and the Campaign for Real Ale lobbied hard. Parliament granted an explicit exemption allowing draft beer and cider to be sold by the imperial pint. Milk got a similar exemption. The result is a hybrid system where your gin is metric but your beer is imperial.
How many imperial fluid ounces are in a UK pint?
There are exactly 20 imperial fluid ounces in one UK pint (568 mL). In the US system, 1 pint = 16 US fluid ounces (473 mL).
Is the imperial fluid ounce still used?
The imperial fluid ounce is rarely used for commercial transactions in the UK today, which metricated in the 1990s. UK spirits servings are now legally defined in metric (25 mL or 35 mL).
Why is a UK shot 25 mL not one fluid ounce?
When the UK metricated bar measures, the 25 mL "metric measure" replaced older imperial measures. One imperial fl oz (28.41 mL) was not adopted because the EU standardized on 25 mL. So UK shots are not exactly one fl oz.
How many milliliters are in an imperial fluid ounce?
One imperial fluid ounce equals approximately 28.413 mL. One US fluid ounce equals approximately 29.574 mL. Both round to roughly "30 mL" in casual usage, but the precise difference matters in pharmacology.
US liquid pint – Frequently Asked Questions
How many ounces are in a pint?
A US liquid pint contains exactly 16 US fluid ounces (≈ 473 mL). A UK/imperial pint contains 20 imperial fluid ounces (≈ 568 mL). The UK pint is 20% larger — a significant difference when ordering beer in the UK vs the US.
Why does ice cream come in pints but milk comes in gallons?
It is about consumption rate and pricing psychology. A pint of premium ice cream (473 mL) is a single household's weekly treat — small enough to feel indulgent, large enough to share. Milk is consumed daily in quantity, so selling it by the gallon (3.785 L) keeps the per-unit cost low and reduces shopping trips. The ice cream pint also hides shrinkflation well: brands like Häagen-Dazs shrank from 16 oz to 14 oz while keeping the "pint" container shape. Milk has resisted downsizing because consumers are acutely aware of gallon pricing.
How many pints are in a gallon?
In both the US and imperial systems, there are 8 pints in one gallon. The number is the same, but both the pint and gallon are larger in the imperial system.
How many milliliters is a pint of beer?
A US pint of beer is 16 fl oz ≈ 473 mL. A UK pint is 20 fl oz ≈ 568 mL. In Canada, a pint legally means at least 568 mL, closer to the UK measure.
What is a dry pint?
A US dry pint is 550.6 mL, used for measuring dry goods like berries, grains, and produce. It is about 16% larger than the US liquid pint (473.2 mL). The dry pint survives mainly in agricultural and produce markets.