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Rule of 9s Calculator

Calculate total body surface area (TBSA) affected by burns

Patient Type

Select patient age group for appropriate percentages

Select Affected Body Areas

Click on body areas affected by burns

Rule of 9s Information

Adult Distribution:
  • Head and neck: 9%
  • Each arm: 9%
  • Each leg: 18%
  • Anterior trunk: 18%
  • Posterior trunk: 18%
  • Genitalia: 1%
Pediatric Differences:
  • Head and neck: 18% (larger proportion)
  • Each leg: 14% (smaller proportion)
  • Other areas same as adult

Burn Assessment Result

0%
Total Body Surface Area
Minor Burn
Outpatient Management
Treatment Recommendations:
  • • Clean and dress burns
  • • Tetanus prophylaxis if indicated
  • • Pain management with oral analgesics
  • • Follow-up in 24-48 hours
  • • Patient education on wound care

Selected Areas Summary

No areas selected