Volume Converter
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Enter a value and pick the source and target units; the result updates live.
Volume is a measure of three-dimensional extent. The SI unit is the cubic metre (m³); practical units include litres, millilitres, and (in the US) cubic inches, cubic feet and gallons.
Volume conversions are "cubed" — a factor of 10 in length is a factor of 1000 in volume. This matters when converting a container's dimensions to litres, or when comparing a US gallon (3.785 L) to an imperial gallon (4.546 L).
Common applications
Converting a tank's dimensions to litres; comparing US and imperial gallons; reading a part's volume in cm³ vs. in³.
Frequently asked questions
The cubic metre (m³). 1000 L = 1 m³.
1 US gallon ≈ 3.785 L. (An imperial gallon ≈ 4.546 L.)
Because volume is length³. A 10× length change is a 1000× volume change.