Volume Unit Converter

How to convert volume units

1. Select your “From” unit (e.g., US gallon).
2. Enter a value (e.g., 2.5).
3. Select your “To” unit (e.g., liters).
4. See instant results and the 1 unit summary below.
5. Use “Reset” to start again.

Tip: You can type on either side both fields update intelligently.

Supported units

Note: “US legal cup” = 240 mL (nutrition labeling). A “US customary cup” is ~236.588 mL, which differs slightly from the legal cup.

Quick reference conversions

• 1 US gallon = 3.78541 L
• 1 Imperial (UK) gallon = 4.54609 L
• 1 US quart = 0.946353 L
• 1 US pint = 0.473176 L
• 1 US fluid ounce = 29.5735 mL
• 1 US tablespoon = 14.7868 mL
• 1 US teaspoon = 4.92892 mL
• 1 Imperial fluid ounce = 28.4131 mL
• 1 cubic foot = 28.3168 L
• 1 cubic inch = 16.3871 mL
• 1 US legal cup = 240 mL • 1 US customary cup ≈ 236.588 mL

Best practices

• Confirm US vs UK (Imperial) units gallons, quarts, pints, and fl oz differ.
• For recipes, note that volume→mass depends on density (e.g., 1 cup water ≠ 1 cup flour by weight).
• Use US legal cup (240 mL) for nutrition labels; some recipes use US customary cup (~236.588 mL).
• Round only at the end if you’ll do more calculations.
• Keep raw values for records and reproducibility.

Frequently Asked Questions