Volume Converter
Convert volume between millilitres, litres, cubic metres, UK gallons, US gallons, pints, cups and fluid ounces.
How to use the volume converter
Enter a value, choose the unit you are converting from, then choose the unit you want. The answer updates immediately. You can also edit the result box to convert in the opposite direction, or use Swap units.
Common conversions
- 1 UK gallon = 4.54609 litres
- 1 US gallon = 3.785411784 litres
- 1 litre = 1000 millilitres
Results are calculated in your browser. For safety-critical, engineering, financial or regulated work, independently verify the result and required precision.