Gallon Converter
Convert gallons to liters, milliliters, cups, pints, quarts, cubic feet, and other volume units instantly.
Gallon Converter
This Gallon Converter converts between US gallons and other volume units including liters, milliliters, cups, pints, quarts, cubic feet, and fluid ounces. Select any two units for bidirectional conversion.
US Gallon Equivalents
One US gallon equals 3.785 liters, 3785 milliliters, 16 cups, 8 pints, 4 quarts, 128 fluid ounces, or approximately 0.134 cubic feet.
How to Use
Enter a volume, choose the source and target units, and view the converted result along with equivalents in all supported units. Use Swap Units to reverse the conversion direction.
Frequently Asked Questions
How many liters are in a gallon?
One US gallon equals 3.785411784 liters. Enter 1 gallon in the converter to see precise equivalents in all supported units.
How many cups are in a gallon?
There are 16 US cups in one US gallon. This converter uses US customary volume units.
Can I convert liters to gallons?
Yes. Select liters as the from unit and gallons as the to unit, or use Swap Units after entering your value.
Does this converter include cubic feet?
Yes. One US gallon equals approximately 0.1337 cubic feet. All conversions are shown in the breakdown panel.
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