Estimate adult total body surface area (TBSA) burned using the Rule of Nines.
Adult Rule of Nines, whole regions only: tick a region only if all of it is burned. For partial regions use the palm method (patient's palm with fingers ≈ 1% TBSA) or a Lund-Browder chart, which is also required for children (proportionally larger head). Count partial- and full-thickness burns only, not superficial erythema. Burn severity and transfer decisions also depend on depth, age, location (face, hands, feet, genitalia), inhalation injury and comorbidity.
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Rule Of Nines is built on published formulas and reference ranges from established health sources. We revisit it periodically as guidance evolves; the "Last reviewed" date above shows when that last happened. If something looks wrong, tell us with the feedback button in the bottom-right corner.
No. Rule Of Nines gives you a general estimate based on the inputs you provide, not a diagnosis. Existing conditions, medications, and individual history all change what a number actually means for you. Treat this as a starting point for a conversation with a doctor or other qualified health professional, not a substitute for one.