Volume Converter

Volume units are easy to mix up because the US and the UK use the same names for different sizes: a US gallon is 3.785 litres but an imperial gallon is 4.546 litres, and a US cup is not a metric cup. This converter lists US, imperial and metric kitchen measures separately, plus cubic units and oil barrels.

How to use Volume Converter

1. Type the value you want to convert.
2. Choose the unit you have in From and the unit you want in To. The swap button turns the conversion round.
3. Read the answer, with the formula underneath. For example, 1 US gallon = 3.785 litres.
4. Open All units to see the value in every unit at once, and copy the one you need.

When it comes in handy

• Following a recipe from another country.
• Working out the capacity of a tank, pool or container.
• Converting fuel or liquid quantities on invoices.

Frequently asked questions

Is a US cup the same as a metric cup?

No. A US cup is 236.6 ml and a metric cup, used in Australia, New Zealand and Canada, is 250 ml. For baking the difference can matter.

How many litres are in a cubic metre?

Exactly 1,000. One litre is one cubic decimetre, and one millilitre is one cubic centimetre.