Burn Percentage Calculator
Total Body Surface Area (TBSA) burn estimation using Rule of Nines with Parkland fluid resuscitation calculation.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Total Body Surface Area Burned (%)
0
How to Use This Calculator
- Toggle each body region (Head/Neck, Chest, Abdomen, Back, Arms, Legs, Genitalia) that has full- or partial-thickness burns.
- Toggle Pediatric Patient if the patient is under 10 years old — the rule of nines adjusts for larger head-to-body ratio.
- Enter Patient Weight (kg) for Parkland formula fluid resuscitation.
- Review Total Body Surface Area Burned (%) — burns >= 20% TBSA require fluid resuscitation.
- Use Parkland 24h Total (mL) to set the IV fluid rate: half in first 8 hours, half over next 16 hours.
What each input means
- Head/Neck Burned?
- Adult 9%, Child 18% TBSA.
- Anterior Chest Burned?
- 9% TBSA.
- Left Arm Burned?
- 9% TBSA each arm.
- Left Leg Burned?
- Adult 18%, Child 14% TBSA.
- Genitalia / Perineum Burned?
- 1% TBSA. Auto-triggers burn center referral.
- Pediatric Patient (< 10 years)?
- Adjusts head/leg percentages for pediatric patients.
- Patient Weight (kg)
- Weight in kilograms for Parkland fluid calculation.
What each result means
- Total Body Surface Area Burned (%)
- Percentage of total body surface area affected.
- Parkland 24h Total (mL)
- Total crystalloid volume for first 24 hours (4 mL/kg/%TBSA).
- First 8 Hours (mL)
- Half of total Parkland volume given in first 8 hours from burn.
- Next 16 Hours (mL)
- Remaining half given over next 16 hours.
- Severity (1=Minor, 2=Moderate, 3=Major)
- ABA burn severity classification.
- Burn Center Referral (1=Yes, 0=No)
- Whether ABA criteria for burn center transfer are met.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersHead/Neck Burned? = 0, Anterior Chest Burned? = 0, Abdomen Burned? = 0, Upper Back Burned? = 0 = 12 input(s) provided
- Calculate Total Body Surface Area BurnedTotal Body Surface Area Burned = head * headPct +0 = 0
- Calculate Parkland 24h TotalParkland 24h Total = 4 * weight * tbsa0 = 0
- Calculate First 8 HoursFirst 8 Hours = round(parklandTotal / 2)0 = 0
Engine last updated . Checked against 1 independently-derived test — how we verify calculators.
Related Calculators
The questions that sit next to this one — chosen by subject, including calculators filed under a different category.
Blood Transfusion Calculator
Calculate packed RBC units needed from current and target hemoglobin with estimated blood volume.
Emergency MedicineTrauma Score Calculator
Revised Trauma Score (RTS) from GCS, systolic blood pressure, and respiratory rate with survival probability estimate.
Clinical MedicineParkland Formula for Burns Calculator
Calculate IV fluid resuscitation requirements for burn patients using the Parkland (Baxter) formula.
Emergency MedicineChest Tube Size Calculator
Select chest tube size (Fr) based on indication, patient type, and weight with insertion site and drainage system recommendations.
More in Medical & Clinical.