ICF is
In a 70 kg normal manThe intracellular compament contains on average about 28 litres of fluid.The extracellular compament contains on average about 14 litres of fluid, of which the interstitial space has approximately 10.5 litres of fluid and intravascular is approximately 3.5 litres.(Ref. Textbook of physiology AK Jain 5th edition page no.24 table 1.3.1)
14 L
20 % of body weight
28 L
33% of body weight
General physiology