cubed (measure)3 ((Note a small 3))
It is cubic units
Mass . . . kilogram Capacity . . . cubic meter
Cubic metres.
Cubic kilometres.
If you mean capacity in the sense of volume, the main unit would of course be the cubic meter; other units used include cubic decimeters (equal to liters), cubic centimeters, cubic millimeters.
A millimeter is a unit of length, not a unit of volume or capacity. Perhaps you mean a cubic millimeter.
There is no SI base unit for capacity. In order to express capacity using SI units, you must resort to a derived unit, such as m³ or cm³ (cubic meters or cubic centimeters). In the metric system, the measurement of Liters (or Litres) may be used, but this is not an SI unit. One liter is equal to 1 dm³ (one cubic decimeter), which is a derived SI unit.
The cc (cubic centimetre). The litre is the unit of capacity.
cubic feet or cubic inches
In decreasing order: cubic decimeter = liter cubic centimeter = milliliter cubic millimeter
A foot is a unit of length. A cubic inch is a unit of capacity. The two units are therefore incompatible.
A centimetre is a unit of distance. A cubic millimetre is a unit of capacity. The two units are therefore incompatible.