Pediatrics · Emergency Medicine · Critical Care

Burn Total Body Surface Area (Wallace Rule of Nines, Pediatric) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Head and neck burn (% TBSA)

Anterior trunk burn (% TBSA)

Posterior trunk burn (% TBSA)

Right arm burn (% TBSA)

Left arm burn (% TBSA)

Right leg burn (% TBSA)

Left leg burn (% TBSA)

Perineum burn (% TBSA)

Result

Complete all required inputs to calculate the score.

Formula 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

Hettiaratchy S, Papini R. ABC of burns: pathophysiology and types of burns. BMJ. DOI: 10.1136/bmj.328.7453.1427. PMID: 15217876. Scope: pediatric burn resuscitation planning uses the same Wallace rule-of-nines regional percentages as adults when Lund-Browder charts are unavailable; total TBSA equals the sum of burned regional percentages. (2004)

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