Convert volume between U.S. gallons, quarts, pints, cups, fluid ounces, liters and milliliters.
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Enter the requested values above and select Calculate. The result updates immediately on the page, so you can change one value and compare different scenarios without leaving the calculator.
Convert 2 gallons to liters or 500 milliliters to U.S. cups.
Convert volume between U.S. gallons, quarts, pints, cups, fluid ounces, liters and milliliters. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
2 US liquid gallons equal 2 × 3.785411784 = 7.570823568 liters. Changing the unit to cups or fluid ounces also uses US customary liquid measures.
Don’t mix standards: an imperial gallon is larger than a US gallon, and dry cups may be measured differently. This converter uses the listed US liquid units, not imperial or dry-volume units.
Convert volume between U.S. gallons, quarts, pints, cups, fluid ounces, liters and milliliters.
Values are converted through liters as a common base unit.
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