How many litres of blood are in the human body? Is it different for males and females?

Blood is a fluid connective tissue that consists of plasma, blood cells and platelets. It circulates throughout our body delivering oxygen and nutrients to various cells and tissues. It makes up 8% of our body weight.

Amount of Blood in men and women

  • An average adult possesses around 5-6 litres of blood.
  • Women tend to have a lower blood volume than men.
  • However, a woman’s blood volume increases by roughly 50% during pregnancy.

Composition of Blood

Blood is primarily broken down into the following components:

  • Plasma
  • RBC
  • WBC
  • Platelets

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