Burn Size Estimation, Adult or Older Child

Here are some ways to estimate how much of the body is burned in an adult or older child.

  • The palm of the person's hand equals 1% of the body's surface area. Using the person's palm is a good way to estimate the size of a small burn.
  • The total surface of the head plus the neck is 9% of the body's surface area.
  • The total surface of one arm and hand is 9%.
  • The chest is 9%.
  • The belly is 9%.
  • The upper back is 9%.
  • The lower back is 9%.
  • The total surface of one leg and foot is 18%.
  • The groin area is 1%.

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