Unit conversion
Volume Converter
Convert liters and cubic units, plus explicitly labeled US liquid and imperial gallons, quarts, pints, and fluid ounces.
Convert a value
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US liquid and imperial volumes are different
Choose the unit system on your original measurement. An imperial gallon is 4.54609 liters; a US liquid gallon is 3.785411784 liters. Their pints and fluid ounces also differ.
The US cup is the customary 8-fluid-ounce cup, not a 240 mL nutrition-label cup or a 250 mL metric cup. Dry US measures are not supported. Volume cannot be converted to mass without a density.
Example
1 US liquid gallon = 3.785411784 liters.
Precision and input limits
Results use browser floating-point arithmetic and are rounded to your selected number of significant digits, not decimal places. Small or large results may use scientific notation. This is not an arbitrary-precision calculator.
Enter zero or a number with magnitude from 1e-100 to 1e100. Signed values are supported for mathematical conversions. Swap units exchanges the unit choices without changing your input. Editing an input clears the previous result.