Metric System:
* Cubic meter (m³): The standard unit of volume in the metric system.
* Cubic centimeter (cm³): Often used for smaller volumes.
* Liter (L): A common unit for liquid volume, equivalent to 1000 cm³.
* Milliliter (mL): A smaller unit of liquid volume, equivalent to 1 cm³.
Imperial System:
* Cubic foot (ft³): A common unit for larger volumes.
* Cubic inch (in³): Used for smaller volumes.
* Gallon (gal): A common unit for liquid volume.
* Fluid ounce (fl oz): A smaller unit of liquid volume.
Other units:
* Barrel (bbl): Used for oil and other liquids.
* Acre-foot (acre-ft): Used for measuring water volume.
* Cubic kilometer (km³): Used for very large volumes.
The best unit for expressing volume depends on the size and context of the volume being measured.
