The amount of blood in a human body varies depending on factors like age, weight, and sex. Here’s a breakdown:

• Average Adult: An average adult human body (considering someone around 150-180 pounds) has approximately 5 to 5.7 liters of blood.
• Variations:
  • Adult males, typically larger than females, may have closer to 5.5 or 6 liters of blood.
  • Adult females may have 4.3 to 4.5 liters of blood.
  • Infants have a much smaller blood volume relative to their size, around 1.2 fluid ounces per pound of body weight (translates to 75-80 milliliters per kilogram).