About Volume Conversion
Volume conversions are essential for cooking, chemistry, and engineering. Convert between metric and US customary volume units instantly.
Metric and US customary volume
A liter is 1,000 milliliters, and a cubic meter is 1,000 liters. US customary volume is based on the US gallon of exactly 3.785411784 liters: a quart is a quarter gallon (946.35 mL), a pint is half a quart (473.18 mL), a cup is half a pint (236.59 mL) and a fluid ounce is 1/8 cup (29.57 mL).
US, UK and metric measures differ
The UK imperial system uses the same names for different sizes. An imperial gallon is 4.54609 L and an imperial pint is 568.26 mL, about 20% more than their US counterparts, while an imperial fluid ounce is 28.41 mL, slightly less. Recipes add another twist: US nutrition labels use a 240 mL cup, and Australia, Canada and New Zealand often use a 250 mL metric cup. This converter uses US customary units.
Kitchen conversions
- 1 cup is 236.6 mL, so 2 cups is 473.2 mL
- 1 tablespoon is about 14.8 mL, and 1 teaspoon about 4.9 mL
- 1 liter is about 4.23 US cups, or 33.8 fluid ounces
- 1 US gallon is 3.785 liters