Blood volume is the total amount of blood circulating in the body. It is typically measured in milliliters (mL) and represents the sum of the plasma volume (the liquid component of blood) and the red blood cell volume. Blood volume can vary slightly from person to person based on factors such as gender, weight, and hydration status. On average, a healthy adult male has a blood volume of about 5-6 liters, while a healthy adult female has a blood volume of about 4-5 liters.
