Burn Fluid Resuscitation Calculator
Compute initial fluid resuscitation for major thermal burns using the Parkland (4 mL/kg/%TBSA over 24 hours, half in the first 8 hours) and Modified Brooke (2 mL/kg/%TBSA) formulas.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Patient weight
- 70 kg
- Burn surface area
- 20 % TBSA
- Hours since injury
- 0
Result: Parkland 5600 mL/24h (2800 mL first 8h); Brooke 2800 mL/24h.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Patient weight
- Burn surface area
- Hours since injury (optional, 0-8)
What this is
Sophie Well takes patient weight in kilograms, the estimated percent total body surface area burned (using the Rule of Nines for adults or the Lund-Browder chart for pediatrics), and the time of injury, then returns the initial drip rate and the 8-hour and 24-hour cumulative volumes for each formula.
When to use it
Use this when accepting a burn transfer or starting initial resuscitation in the field or ED on a patient with greater than 20% TBSA partial- or full-thickness burns. The formulas estimate starting fluid; ongoing titration follows urine output (0.5 mL/kg/hr in adults, 1 mL/kg/hr in pediatrics, higher in electrical injury) and hemodynamics, and over-resuscitation ("fluid creep") is a recognized harm. Both formulas count from the time of injury, not the time of arrival - if the patient is two hours post-burn on arrival, the first 8-hour window is already two hours in.
How this is calculated
Baxter CR, Shires T. Physiological response to crystalloid resuscitation of severe burns. Ann N Y Acad Sci. 1968;150(3):874-894 (Parkland). Reiss E, et al. Modified Brooke formula. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.