The average adult human body contains approximately 5 to 6 liters of blood. This volume can vary based on several factors, including a person’s size, weight, and overall health.
Blood makes up about 7-8% of a person’s total body weight. For example, an adult weighing around 70 kilograms (154 pounds) typically has about 5.5 liters of blood. However, in larger individuals, this amount can be higher, possibly reaching up to 7 liters.
Blood is crucial for various bodily functions, including transporting oxygen and nutrients to tissues, removing waste products, and playing a key role in the immune system. Maintaining a sufficient blood volume is vital for overall health and bodily function.