Volume Converter
Convert between liters, milliliters, cups, fluid ounces, gallons and pints instantly.
Standard volume units
Fun comparisons
Volume conversion is used daily in cooking, baking, brewing and science. The liter is the metric standard for liquid volume while cups, fluid ounces, gallons and pints are common in US recipes and everyday life. Our volume converter handles all 30 unit pairs instantly and includes real-world comparisons - like water bottles and bathtubs - to help you picture the amounts.
Frequently asked questions
There are approximately 4.227 US cups in one liter. This conversion is commonly used in cooking and baking when switching between metric recipes and US measurements.
To convert liters to US gallons, multiply by 0.264172. For example, 10 liters equals approximately 2.64 gallons. Gallons are used for fuel and liquid capacity in the US while liters are the metric standard worldwide.
A fluid ounce measures volume (about 29.57 mL) while an ounce (oz) measures weight. They are different units and not interchangeable. One US cup equals 8 fluid ounces.
There are approximately 236.6 milliliters in one US cup. This is a commonly used conversion in cooking and baking when following metric recipes. For reference, a standard coffee mug holds roughly 250-350 mL.
The US gallon equals approximately 3.785 liters while the UK (imperial) gallon equals approximately 4.546 liters - about 20% larger. This converter uses US gallons. If you are following UK recipes or fuel economy figures, be aware of this important difference.
All volume conversions
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