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A person can have around 4.8 - 6.2 litres of blood in their body. Depending on body size, fitness.

In a healthy person, all this blood will be pumped by the heart very minute, so multiply the volume of blood by 1440 (60 minutes x 24 hours) and that is how much blood will pass through the heart per day at rest. If exercise is done, this could increase to 40L per minute.

4.8 x 1440 = 6912 Litres - 1825 gallons

6.2 x 1440 = 8928 Litres - 2357 gallons

This is the same blood being pumped continuously .

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