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 Description  
 Cubic Unit:  Standard measure of volume.
Cubic Units and Dimensions

In the Metric System the units for volume are derived from units for length. For example, the milliliter is defined as a cubic centimeter. In other words, a milliter is equivalent to the capacity of a cube with sides of length 1 centimeter. The largest volume (capacity) this cube can hold is:

V = length x width x height
=1 cm x 1 cm x 1 cm
=1 cubic centimeter.

So the dimensions of the cube are the length, width and height. These values describe how large the cube is.

In the same manner, the liter is defined as a cubic decimeter and the kiloliter is defined as a cubic meter.