The US liquid pint equals 473 millilitres — half a US quart or 1/8 US gallon. The UK imperial pint (568 ml) is 20% larger and is the legal unit for draft beer and milk in the UK. Pubs serving pints must use UK imperial pints by law.
Real-world: A UK pub pint is 568 ml by law. A US pint of Ben & Jerry's ice cream is 473 ml. UK milk bottles are often pints.
Read full pint reference →The UK imperial gallon equals 4.54609 litres exactly. Defined in 1824 as the volume of 10 pounds of water at 62 °F. Still used for fuel economy reporting in the UK and some older industrial contexts. The UK imperial gallon is about 20% larger than the US gallon.
Real-world: UK petrol sold by litre since 1995, but economy is quoted in UK mpg: a diesel car at 60 mpg (UK) uses 4.7 L/100 km.
Read full uk gallon reference →