Multiple choice general knowledge Total volume of blood in a normal adult human being is 5-6 liters 3-4 liters 8-10 liters 10-12 liters Reveal answer Fill a bubble to check yourself A Correct answer Explanation An average adult human has approximately 5-6 liters of blood, roughly 7% of body weight. This volume can vary based on body size, sex, and other factors, but 5-6 liters represents the standard accepted range for medical purposes.