🧪 Volume Conversion
Convert volume between metric and US customary units for cooking, science, or everyday use.
How this volume converter works
This calculator converts a volume from one unit into another by first converting your input into liters (the common reference unit), then converting from liters into the unit you want. For example, one US gallon equals 3.785411784 liters and one US cup equals 0.2365882365 liters — these are the standard, widely accepted conversion factors.
It covers both metric units (milliliters, liters, cubic meters) and US customary units (gallons, quarts, pints, cups, fluid ounces, cubic feet), which makes it handy for cooking, recipes, science experiments, and container sizing.
This tool is intended for general planning and educational purposes. Note that US and UK (imperial) fluid measurements differ slightly; this calculator uses US customary definitions throughout.