Volume Converter
Convert liters, milliliters, US and UK gallons, quarts, pints, cups, fluid ounces, tablespoons and cubic units.
US and UK units differ
The US gallon (3.785 L) is about 17% smaller than the UK imperial gallon (4.546 L). US fluid ounces are also slightly larger than UK fluid ounces, and a US pint is 16 fl oz while a UK pint is 20 fl oz. This converter uses US customary units unless labelled UK.
Common conversions
| Unit | Milliliters |
|---|---|
| 1 US teaspoon | 4.93 |
| 1 US tablespoon (3 tsp) | 14.79 |
| 1 US fluid ounce (2 tbsp) | 29.57 |
| 1 US cup (8 fl oz) | 236.6 |
| 1 US pint (2 cups) | 473.2 |
| 1 US quart (2 pints) | 946.4 |
| 1 US gallon (4 quarts) | 3,785.4 |
A 10-liter container holds 10 ÷ 3.785 = 2.64 US gallons, or 2.2 UK gallons.
Cooking conversions
Recipes from Australia and the UK often use a metric cup of 250 ml, slightly larger than the US cup. A metric tablespoon is 15 ml (20 ml in Australia). For baking, weighing ingredients avoids these differences entirely.
Cubic units
One liter is exactly 1,000 cubic centimeters, and 1,000 liters make a cubic meter. A cubic foot holds about 28.3 liters, which helps when sizing fridges, freezers and storage.
Frequently asked questions
How many liters are in a gallon?
A US gallon is 3.785 liters. A UK imperial gallon is 4.546 liters.
How many milliliters are in a cup?
A US cup is about 236.6 ml. A metric cup used in the UK, Australia and Canada is 250 ml.
How many fluid ounces are in a liter?
About 33.8 US fluid ounces.
Last reviewed Oct 20, 2026. Results are estimates; check important decisions with a qualified professional.