It is a measurement of volume using units from the metric system.
If, by 'metric system', you mean the 'SI system', then there is no base unit for volume. The unit for volume is called a 'derived unit', and it is the cubic metre (m3).
I not a metric unit of anything! A litre is one metric unit for volume.
A liter is the metric unit of volume
Any metric measure of volume.
The metric volume of a sink would be measured in litres.
The metric volume of a sink would be measured in litres.
The measure for volume is the litre.
A litre is a metric unit of volume.
metric unit of measure for volume is mm cube .
The metric volume of a sink would be measured in litres.
metric conversion
The metric unit of volume is meter squared: m3.