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Volume Converter

Convert between litres, gallons, pints, cups, and fluid ounces. UK and US measurements.

Frequently asked questions

What is the difference between a UK gallon and a US gallon?

A UK (imperial) gallon equals 4.546 litres, while a US gallon equals 3.785 litres. A UK gallon is roughly 20% larger than a US gallon. Always check which gallon a recipe or measurement refers to.

How many millilitres are in a UK pint?

One UK pint equals 568.26 millilitres. A US pint is smaller at 473.18 millilitres. UK pints are commonly used in pubs for draught beer.

How many cups are in a litre?

One litre equals approximately 4.227 US cups. A US cup is 236.59 millilitres. Cup measurements vary by country, so this converter uses the US cup standard.