Emergency Medicine · ICU and Critical Care · Surgery
Rule of Nines (TBSA) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
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0
TBSA <=10%
Band: TBSA <=10%
Interpretation. TBSA <=10%
Suggested management. TBSA ≤10% by Rule of Nines.
Rule of Nines (TBSA): 0 — TBSA <=10%. Interpretation: TBSA <=10% What to do: TBSA ≤10% by Rule of Nines. Inputs: Head/neck (+9): false; Right arm (+9): false; Left arm (+9): false; Anterior trunk (+18): false; Posterior trunk (+18): false; Right leg (+18): false; Left leg (+18): false; Perineum (+1): false Source: Moore RA, Popowicz P, Burns B. Rule of Nines. StatPearls. PMID: 30020659. Scope: adult TBSA% = head/neck 9 + each arm 9 + anterior trunk 18 + posterior trunk 18 + each leg 18 + perineum 1 (Wallace Rule of Nines); include partial- and full-thickness burns only. (2018)
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Clinical inputs
- Head/neck (+9)
- Right arm (+9)
- Left arm (+9)
- Anterior trunk (+18)
- Posterior trunk (+18)
- Right leg (+18)
- Left leg (+18)
- Perineum (+1)
Primary source
Moore RA, Popowicz P, Burns B. Rule of Nines. StatPearls. PMID: 30020659. Scope: adult TBSA% = head/neck 9 + each arm 9 + anterior trunk 18 + posterior trunk 18 + each leg 18 + perineum 1 (Wallace Rule of Nines); include partial- and full-thickness burns only. (2018)
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