Space or quantity of matter that a container can hold.
In the international system, the unit of measure for capacity is the litre.
A measurement of capacity is a number that expresses how much a container holds.
A measurement of capacity is a number that expresses how much a container holds.
Example
The edge of this cube measures 1 centimetre (1 cm). Its volume is 1 cubic centimetre (1 cm^{3}).
Its capacity is 1 millilitre (1 ml), because: 1 cubic centimetre is equivalent to 1 millilitre. Therefore, it can contain 1 millilitre of water.
The edge of another cube measures 1 decimetre (1 dm). Its volume is 1 cubic decimetre (1 dm^{3}).
Its capacity is 1 litre (1 L), because: 1 cubic decimetre is equivalent to 1 litre. Therefore, it can contain 1 litre of water.
NOTATIONS AND EQUIVALENTS
The unit of measurement of the capacity of a container is the litre (L or l when there is no confusion possible with the digit 1).
The litre is the capacity of a container that has a volume of 1 cubic decimetre.
Name  Symbol 
Correspondence (volume) 
Name  Symbol 
Correspondence (volume) 


litre  L  dm³  
decalitre  dal  decilitre  dl  
hectolitre  hl  centilitre  cl  
kilolitre  kl  m³  millilitre  ml  cm³  
megalitre  Ml  dam³  microlitre  µl  mm³  
gigalitre  Gl  hm³  nanolitre  nl 