Emergency Medicine · ICU and Critical Care · Surgery
Burn Total Body Surface Area (Wallace Rule of Nines, Adult) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 0–9 % TBSA
Allowed range: 0–9 % TBSA
Allowed range: 0–9 % TBSA
Allowed range: 0–9 % TBSA
Allowed range: 0–9 % TBSA
Allowed range: 0–18 % TBSA
Allowed range: 0–18 % TBSA
Allowed range: 0–1 % TBSA
Result
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Clinical inputs
- Head and neck burn (% TBSA)Accepted range: 0 to 9
- Anterior trunk burn (% TBSA)Accepted range: 0 to 9
- Posterior trunk burn (% TBSA)Accepted range: 0 to 9
- Right arm burn (% TBSA)Accepted range: 0 to 9
- Left arm burn (% TBSA)Accepted range: 0 to 9
- Right leg burn (% TBSA)Accepted range: 0 to 18
- Left leg burn (% TBSA)Accepted range: 0 to 18
- Perineum burn (% TBSA)Accepted range: 0 to 1
Primary source
Wallace AB. The exposure treatment of burns. Lancet. DOI: 10.1016/S0140-6736(00)55578-2. PMID: 14884765. Scope: adult Wallace rule of nines assigns 9% TBSA each to head/neck, anterior trunk, posterior trunk, and each arm; 18% to each leg; 1% to perineum; total burn TBSA is the sum of burned percentages by region. (1951)
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