Volume Converter
Convert between metric volume and US liquid measures, with the UK gallon included because it is a different size from the US one.
0.208168546157
1 Quart (US) = 0.208168546157 gal
About this tool
Metric volume is straightforward: a litre is a cubic decimetre, a millilitre is a cubic centimetre, and a cubic metre is 1,000 litres. US liquid measures nest instead: 8 fluid ounces to a cup, 2 cups to a pint, 2 pints to a quart, 4 quarts to a gallon.
The gallon is the trap. A US gallon is 3.785411784 litres while an imperial gallon is 4.54609 litres, about 20% larger. Recipes and fuel figures written in one country do not transfer to the other without converting.
Frequently asked questions
- How many litres are in a gallon?
- 3.785411784 L for a US gallon, 4.54609 L for a UK imperial gallon. Always check which one a figure means.
- How many millilitres are in a cup?
- A US cup is 236.588 ml. A metric cup used in Australia and New Zealand is a round 250 ml, and a UK recipe cup is 284 ml.
- How many fluid ounces are in a litre?
- About 33.81 US fluid ounces, or 35.2 UK fluid ounces — the two ounce sizes differ as well.
- Is a litre the same as a kilogram?
- Only for pure water at about 4 °C. Other liquids have different densities, so a litre of oil weighs less and a litre of honey weighs more.