how much blood does an average person have
The amount of blood in the human body depends on size. An average man of 150 lbs or 70 kgs will have around 8 pints or 5.2 litres of blood. A woman of 110 lbs (50 kgs) will have about 3.3 litres of blood; about 5 pints. (However, 110 lbs is a petite size!).