About this volume converter
Recipes, fuel, drinks, paint, and aquariums are all measured by volume, but the units change from country to country. This converter covers metric units, from milliliters to cubic meters, and US customary units, from teaspoons and tablespoons through cups, pints, quarts, and gallons to cubic feet. It uses the exact US definitions, where a gallon is 231 cubic inches (3.785 liters) and a cup is one sixteenth of a gallon. British imperial gallons and pints are larger, so check which system a recipe or label uses. Comparisons with mugs, bottles, and bathtubs help you picture the amount.
How to convert volume
- Enter the volume. Type a number, or press an example such as 1 US gallon.
- Choose its unit. Pick the unit the number is in.
- Press Convert volume. Read the volume in every unit and copy the one you need.
Frequently asked questions
How many liters are in a gallon?
A US gallon is 3.785411784 liters. A British imperial gallon is larger, about 4.546 liters, so always check which one a recipe or fuel price means.
How many milliliters are in a cup?
A US cup is about 236.6 mL. Many recipes outside the US use a metric cup of 250 mL, and a US legal cup on nutrition labels is 240 mL.
How many tablespoons are in a cup?
Sixteen US tablespoons, and each tablespoon is three teaspoons, so a cup holds 48 teaspoons.
Is a milliliter the same as a cubic centimeter?
Yes. One milliliter is exactly one cubic centimeter (cc), and one liter is exactly 1,000 cubic centimeters.