Q:

How many liters of blood are in the human body?

A:

Quick Answer

The average adult human carries roughly five liters of blood. This number fluctuates depending on height, weight and muscle mass.

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How many liters of blood are in the human body?
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Full Answer

This five-liter average is estimated for a standard adult male weighing 160 pounds. The volume of blood in a person is roughly one-eleventh of his body weight. There is some evidence that people at higher altitudes may have more blood than average to make up for the lack of oxygen in the atmosphere. Although there are four different blood types, type has no correlation with the amount of blood in a body.

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Related Questions

  • Q:

    How many quarts of blood are in the human body?

    A:

    The American Red Cross reports that an adult human has about 10 pints of blood in his body, which converts to about 5 quarts. When a person donates blood, he typically only provides 1 pint per donation.

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  • Q:

    What does the blood carry?

    A:

    Blood is responsible for transporting oxygen, carbon dioxide, nutrients, hormones and proteins in the body, according to KidsHealth. The blood also carries glucose, ions, amino acids and waste products, such as urea, through the body. Red blood cells carry hemoglobin, a chemical that gives blood its red color.

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  • Q:

    How much blood can you lose?

    A:

    According to the American Society of Hematology, a healthy person can lose approximately 10 to 15 percent of the body's total blood volume without experiencing serious medical problems. Blood volume in an individual depends on gender, size, age and other factors; however, generally, an average-size woman has approximately 9 pints of blood in her body, while an average-size man has about 12 pints.

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  • Q:

    Why is blood red?

    A:

    The red color of blood comes from the hemoglobin that makes up the majority of the mass of the cell, which allows the blood cell to carry oxygen around the body. The plasma itself is a straw color when viewed under a microscope, but the hemoglobin makes up so much of the blood cell that its red color overpowers the color of the plasma. When a red blood cell is full of oxygen, the red has a scarlet tint to it, when it has released it's oxygen its more of a dark burgundy color.

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