Use this volume unit converter to easily convert the volume of an object, gas or liquid one measurement unit to another. Metric and imperial units are supported, including km3, m3, dm3, cm3, mm3, cubic miles, cubic yards, cubic feet, cubic inches, liters (litres), milliliters (ml), fluid gallons (US & Imperial), fluid quarts (US & Imperial), fluid pints (US & Imperial), fluid ounces (US & Imperial), as well as tablespoons and teaspoons, again, U.S. convention and Imperial convention.
What is Volume?
Volume is defined as the quantity which expresses the space occupied by a three-dimensional object, gas, or liquid. One can think of volume as the amount of water displaced by an objected fully submerged in a water tank. Understanding this is helpful in interepreting the output of our volume converter.
There are different ways to calculate the volumes of differently-shaped objects - you can check our volume calculators for formulas, references and easy calculation. Assuming you know or have measured the volume in one unit of volume, you might need to convert it to another, which is where our converter can be of assistance.
Metric volume units
Volume units part of the International System of Measurements (SI) are based on the base unit: the meter, hence the name "metric system". Since every unit of length has a corresponding unit of volume (the corresponding volume of a cube with the given side length) the standard unit of volume in SI is the cubic meter (cubic metre in British English). Other units include the cubic kilometer, cubic decimeter, cubic centimeter, cubic millimeter, liter (UK: litre), milliliter, and others. Our volume converter supports all of these metrics. Below is a reference table for these units relative to the cubic meter.
|Cubic Kilometer||km3||1,000,000,000 m3|
|Cubic Meter||m3||1 m3|
|Liter / Litre||l||1/1,000 m3|
|Cubic Decimeter||dm3||1/100,000 m3|
|Cubic Centimeter||cm3||1/10,000,000 m3|
|Cubic Millimeter||mm3||1/1,000,000,000 m3|
Cubic meters, centimeters, etc. are used to measure the volume of objects while liters and millileters are used for measuring the volume of gases and liquids. In the imperial system the cubic feet and more rarely the cubic yard are used for volumes of objects while liquid gallons, liquid quarts, pints, and fluid ounces are used for liquids and gases.
Imperial units are more of a mess, customary, current and "legal" definitions conflicting with each other. Notably, the U.S. has a system separate from the Imperial one, used in the rest of the world, with the exception of the definition of tablespoons and teaspoons in Australia, which are on their own as well. You'd be happy to know our software supports most imperial units.
Converting volume units
Converting between volume units is straightforward, especially if you have a calculator at hand, however, you need to know the conversion ratios for the different units. Below are several examples to help you get started but using our volume converter is by far the most convenient method.
Volume conversion examples
Cubic Meters to Cubic Feet
Sample task: convert 5 cubic meters to cubic feet. Solution:
m3 * 35.315 = ft3
5 m3 * 35.3150 = 176.5750 ft3
5 m3 is equal to 176.5750 ft3
Liters to US Liquid Gallons
Sample task: convert 100 liters (or litres) to gallons (US). Solution:
l / 3.785 = g
100 l / 3.7850 = 26.420079 g
100 l is equal to 26.420079 g
Fluid Ounces to Milliliters
Sample task: convert 10 fl oz (US) to milliliters (ml). Solution:
fl oz * 29.574 = ml3
10 fl oz * 29.5740 = 295.74 ml3
10 fl oz is equal to 295.74 ml3
Tablespoons (US) to Milliliters
Sample task: convert 2 tablespoons to ml. Solution:
tbsp * 14.787 = ml
2 tbsp * 14.7870 = 29.5740 ml
2 tbsp is equal to 29.5740 ml
 NIST Special Publication 330 (2008) - "The International System of Units (SI)", edited by Barry N.Taylor and Ambler Thompson
 International Organization for Standardization (1993). ISO Standards Handbook: Quantities and units (3rd edition). Geneva: ISO. ISBN 92-67-10185-4.
Cite this converter & page
If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Volume Converter", [online] Available at: https://www.gigacalculator.com/converters/volume-converter.php URL [Accessed Date: 13 Jun, 2021].