The volume of the blood contained in the human body is about 5 liters. On average a heart beats about 70 times a minutes. With each beat heart pumps near about 60 to 90 milliliters of blood, which shows that the total volume of the blood pumped by the heart in one hour is 280 liters, in 24 hours 7200 liters and in one year the volume is about 2,688,000 liters.