Area & Volume

Volume Converter

Volume conversion is mostly a kitchen job – a US recipe in cups, your jug in millilitres. The one thing that bites is the gallon: a US gallon is 3.785 litres, an imperial (UK) gallon is 4.546 litres, and their pints and fluid ounces differ too. This tool uses US customary volumes.

The ratios that never change

ThisEquals
1 tablespoon3 teaspoons = 15 ml
1 US cup16 tablespoons = 240 ml
1 US pint2 cups = 473 ml
1 US quart2 pints = 946 ml
1 US gallon4 quarts = 3,785 ml

Things you can picture

A soda can is 355 ml (12 US fl oz). A wine bottle is 750 ml – about 3.2 US cups. A coffee mug holds 300-350 ml. An Olympic pool at competition depth holds about 3.75 million litres, or roughly 990,000 US gallons.

US, imperial and dry measures

If a recipe or spec is British or Australian, its cup and gallon are larger – convert with the imperial figures, not these. And “dry” measures (a dry pint of blueberries) are a different, volume-of-solids unit again. For converting an ingredient amount between cups and grams, which depends on what the ingredient is, use the cooking converter. For container footprints rather than capacity, see the area converter.

FAQ

What is the difference between a US and imperial gallon?

A US gallon is 3.785 litres (128 US fl oz). An imperial (UK) gallon is 4.546 litres (160 imperial fl oz). Always check which system a source uses.

How many tablespoons are in a cup?

16 tablespoons in a US cup. So 1 tablespoon is 1/16 cup.

How many teaspoons in a tablespoon?

3 teaspoons, in both US and UK cooking.

How many ml is a US cup?

240 ml by the FDA convention used here. Some legal contexts use 236.6 ml, and a metric cup (Australia/NZ) is 250 ml.

How do I convert litres to US gallons?

Divide litres by 3.785. For example, 10 L ÷ 3.785 = 2.64 US gallons.