Volume Converter
Enter a value and choose your source and target units to convert instantly between milliliters, liters, US cups, pints, quarts, gallons, fluid ounces, tablespoons, and teaspoons.
How the Volume Converter formula works
Every unit routes through milliliters as a common base:
value_in_ml = value × factor_of_source_unit result = value_in_ml / factor_of_target_unit
For example, 1 US cup = 236.588 mL and 1 US gallon = 3,785.41 mL.
Step-by-step calculation
- Multiply the entered value by its unit's conversion factor to get milliliters.
- Divide that milliliter value by the target unit's conversion factor.
- Round to a sensible number of decimal places for the target unit.
Worked example
Converting 2 cups to milliliters: 2 × 236.588 = 473.18 mL. Converting 1 gallon to liters: 3,785.41 mL ÷ 1,000 = 3.79 L.
Frequently asked questions
Are these US or metric cup measurements?
This calculator uses US customary units (US cup, US fluid ounce, US gallon) — note that a UK/imperial cup, fluid ounce, and gallon are all different sizes from their US counterparts, which is a common source of recipe conversion errors.
How many tablespoons are in a cup?
16 US tablespoons make one US cup, and each tablespoon is 3 teaspoons — useful benchmarks when scaling a recipe up or down.