The Volume Converter converts between units of volume and capacity — litres, millilitres, cubic metres, US and UK gallons, quarts, pints, cups, fluid ounces, tablespoons, and teaspoons. Enter a value, pick the units, and see the result instantly with an all-units table.
It is perfect for cooking and recipes as well as science and everyday use. Everything is calculated in your browser.
How to convert volume
- Enter the volume value.
- Select the unit to convert from and the unit to convert to.
- Read the result instantly, or press Swap to reverse.
- See the value in every unit in the table below.
Common volume conversions
- 1 litre = 0.264172 US gallons
- 1 US gallon = 3.78541 litres
- 1 cup (US) = 236.588 millilitres
- 1 tablespoon (US) = 3 teaspoons
Frequently Asked Questions
How many millilitres are in a cup?
One US cup is about 236.59 millilitres. Note that measuring cups vary by country — this converter uses US customary units.
How do I convert litres to gallons?
Multiply litres by 0.264172 for US gallons (or 0.219969 for UK gallons). Both US and UK gallons are available here.
What is the difference between US and UK gallons?
A UK (imperial) gallon is larger — about 4.546 litres versus 3.785 litres for a US gallon. This converter includes both.