In the rule of nines, how much body surface area does each leg account for?

In the rule of nines, each leg accounts for 18% of the total body surface area. This method is a quick way to estimate the extent of burns on a person, particularly in emergency situations. Specifically, it divides the body into sections that represent roughly 9% or multiples thereof of the total body surface area.

The head and neck account for 9%, each arm is considered 9%, while the anterior and posterior torso collectively make up 36%, and each leg, being larger than the arms, represents 18% when both the anterior and posterior aspects of the leg are combined.

This framework assists healthcare providers in determining fluid resuscitation needs and treatment plans for burn victims, emphasizing the importance of understanding body surface area proportions for effective patient care.