It seems that no matter where you cut yourself, the blood flows out. And yet, the body is only made what percentage blood?

The weight of the blood in a human body is usually about 1/13 of the overall weight. As you know, the body easily replaces blood that's lost, which is why it's possible for you to give or donate blood to other people. An adult contains, on average, 1.2 to 1.5 gallons of blood.

Asked by Tom Cohen · Last updated 5 years ago · 7.4K views