How to use Volume Converter
- Enter the Value, for example 1.
- Choose Convert from, such as US liquid gallons (US gal).
- Choose Convert to, such as Liters (L).
- Set Decimal places. The result updates as you change the values.
- Read the Result and the liquid measures note when a US or imperial unit is involved.
Example: Volume Converter
Convert cubic meters to liters.
Options
- Convert from / Convert to
- Fifteen units: milliliters, liters, cubic meters and centimeters, cubic inches, feet and yards, and separately named US liquid and imperial fluid ounces, pints, quarts and gallons.
- Decimal places
- Rounds the printed result to 0, 2, 4, 6 or 8 places. Whole results keep every digit, and a small nonzero result is never printed as zero.
Supported inputs and limits
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
A gallon is not one size
A US liquid gallon is 231 cubic inches, which is 3.785411784 liters. An imperial gallon is exactly 4.54609 liters, about 20 percent larger. Keeping the system inside the unit name is the difference between a correct conversion and a quiet error.
Cubic units come from their length
One international inch is exactly 0.0254 meters, and a cubic inch is that length cubed, which gives 16.387064 milliliters. The tool stores the cubic factors directly, so a rounded length is never cubed again.
Questions about Volume Converter
Which gallon does the tool use?
Whichever you choose. One US liquid gallon is 3.785411784 liters and one imperial gallon is exactly 4.54609 liters, so the two are separate named units.
Why is 1 US gallon shown as 3.785412 liters?
The exact factor is 3.785411784 liters, but the result prints at six decimal places by default. Raise Decimal places to 8 to see more; the conversion never uses the rounded figure.
Is a cubic centimeter the same as a milliliter?
For this converter they are the same size, and both are listed so you can enter or read either name.
Does this convert ounces by weight?
No, this is volume only. Turning fluid ounces into grams or ounces of weight needs the ingredient's density, which the tool does not assume.