Volume Converter

Convert volume between milliliters, liters, US and Imperial gallons, quarts, pints, cups, fluid ounces, and cubic units.

Convert instantly

Enter a value and choose the units. Your answer updates as you type.

Value

From

Result

0.001 Liter (L)

Quick reference

Milliliter (mL)0.000001 base units
Liter (L)0.001 base units
Cubic meter (m³)1 base units
Cubic centimeter (cm³)0.000001 base units
US liquid gallon0.003785411784 base units
Imperial gallon0.00454609 base units
US liquid quart0.000946352946 base units

About the Volume Converter

Volume conversion connects laboratory, cooking, construction, and fuel measurements. US customary and Imperial liquid units are not interchangeable: a US gallon is exactly 3.785411784 liters, while an Imperial gallon is exactly 4.54609 liters. Labels in this converter make that distinction visible rather than silently guessing.

Type a value and choose either side to get an instant result—for example, 1 US gallon becomes 3.785411784 liters—including cubic meters, cubic feet, cups, and fluid ounces. Pair this tool with the Length Converter for dimensions or the Weight & Mass Converter when a recipe or material specification needs both volume and mass.

Frequently asked questions

How many liters are in a US gallon?

One US liquid gallon equals exactly 3.785411784 liters.

Is an Imperial gallon the same as a US gallon?

No. An Imperial gallon is about 4.54609 liters, larger than a US gallon at about 3.78541 liters.

How many milliliters are in a liter?

One liter is exactly 1,000 milliliters.

Take this calculation further

Browse the converters calculators collection for more tools in this subject.

For a related calculation, use Weight & Mass Converter to convert mass accurately between milligrams, grams, kilograms, tonnes, ounces, pounds, stone, US tons, and long tons. Alternatively, use Area Converter to convert square metric and imperial units, including square meters, hectares, acres, square feet, square miles, and square kilometers.

For the underlying method, read The Metric vs. Imperial System: A Practical Guide.