Volume Converter
Convert metric, U.S. customary and Imperial volume units including liters, milliliters, cups, fluid ounces, pints, quarts, gallons, cubic inches and cubic feet. This covers common cooking and capacity searches such as ounces to cups.
Conversions use exact defined factors where standards provide them and conventional reference factors otherwise. Round the result to the precision appropriate for your application.
How this tool works
Volume conversion uses the liter as the base unit. One U.S. gallon is exactly 3.785411784 liters and one U.S. cup is 0.2365882365 liter.
Example
1 U.S. cup equals 8 U.S. fluid ounces, while 1 U.S. gallon equals 16 U.S. cups.
Common questions
Is an ounce always a volume unit?
No. A fluid ounce measures volume, while an avoirdupois ounce measures mass. This volume converter uses fluid ounces.
Are U.S. and Imperial gallons the same?
No. A U.S. gallon is about 3.785 liters and an Imperial gallon is exactly 4.54609 liters.