60% of the human body is made up of water, with two thirds of that water located intracellularly and one third extracellularly. The extracellular fluid consists of 80% interstitial fluid located between cells and 20% plasma located in blood vessels. For a 60kg person, their total body water is approximately 36 liters, with 24 liters being extracellular fluid composed of 9.6 liters of interstitial fluid and 2.4 liters of plasma.

1. 1
60%
of our body is
water

2. 2
2/3 ICF
1/3 ECF

3. 3
2/3 ICF
1/3 ECF

4. 4
80%
Interstitial
20%
Plasma

5. 5
80%
Interstitial
20%
Plasma

6. 6
60kg

7. 7
60kg
36L

8. 8
Total body fluid
36L

9. 9
ECF Interstitial Plasma
24L

10. 10
ECF Interstitial Plasma
24L 9.6L

11. 11
ECF Interstitial Plasma
24L 9.6L
2.4L

12. 12
Plasma
2.4L =

13. 13
Plasma
2.4L =