The total length of the blood vessels in the body is roughly 500,000 km. Most of this length is due to the capillaries, which have an average...

The total length of the blood vessels in the body is roughly 500,000 km. Most of this length is due to the capillaries, which have an average diameter of 12 um. Estimate the total volume of blood in the human body by assuming that all the blood is found in the capillaries and that they are always full of blood.

The approximate volume of blood in the human body is ____ L.