An adult male contains 5-6 liters (5.3-6.4 quarts) of whole blood; that of an adult female contains 4-5 liters (4.2-5.3 quarts). The sex differences in blood volume primarily reflect differences in average body size. Blood volume in liters can be estimated for an individual of either sex by calculating 7% of the body weight in kilograms. For example, a 60-kg individual would have a blood volume of approximately 4.2 liters.
4 to 5 litres
About 5 and the juggular can pump 30 liters of blood a minute :P
Blood accounts for 8% of the human body weight, with an average density of approximately 1060 kg/m3, very close to pure water's density of 1000 kg/m3. The average adult has a blood volume of roughly 5 liters (1.3 gal),