Volume Converter
Convert liters, gallons, quarts, pints, cups and fluid ounces.
All units
About this tool
Convert liquid volumes between metric and US units: milliliters and liters against fluid ounces, cups, pints, quarts and gallons, with UK gallons included for good measure. Pick two units and the result updates live.
US and UK gallons differ (3.785 L versus 4.546 L), so both are listed to avoid mix-ups. For kitchen work where you are juggling cups, tablespoons and teaspoons, the cooking converter is a better fit.
Frequently asked questions
- How many liters are in a US gallon?
- About 3.785 liters. A US gallon is 3.785411784 L. A UK (imperial) gallon is larger at about 4.546 L, and both are listed separately here.
- Are these US or metric cups?
- The cup, pint, quart and gallon here are US measures. For recipe-specific conversions between cups, tablespoons and teaspoons, try the cooking converter.
- How many cups are in a quart?
- Four US cups make a quart, and four quarts make a gallon. Enter a value above to convert any of them.
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