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Parkland Formula Calculator

Calculate burn fluid resuscitation volumes using the Parkland formula.

About Parkland Formula Calculator

Half the calculated volume is given in the first eight hours from the time of injury rather than from presentation, so delayed presentation compresses the remaining time. Superficial erythema is excluded from the TBSA estimate. The formula is a starting point that must be titrated against urine output, because both under and over resuscitation cause serious harm.

Formula

Parkland Formula

Total 24 hour volume = 4 mL × weight in kg × per cent TBSA, half in the first 8 hours

TBSA
Total body surface area burned, counting partial and full thickness only
time zero
The clock runs from the time of injury, not from presentation

Worked example

With the default values below, Parkland Formula Calculator returns Volume for the First 8 Hours of 4,500. Change any input above and every figure here is recalculated in your browser.

Inputs used

Body weightminimum 1 kg
75 kg
Burn surface areaaccepts 0–100 %
30 %
Formula factoraccepts 1–6 mL/kg/%
4 mL/kg/%
Hours since injuryaccepts 0–24 h
2 h

Results

Volume for the First 8 Hours
4,500 mL
Total 24 Hour Volume
9,000 mL
Volume for the Following 16 Hours
4,500 mL
Current Hourly Rate
562.5 mL/h
Volume That Should Have Been Given by Now
1,125 mL

Step by step

  1. 1Values used
  2. 2Parkland Formula
  3. 3Volume for the First 8 Hours= 4,500 mL
  4. 4Total 24 Hour Volume= 9,000 mL
  5. 5Volume for the Following 16 Hours= 4,500 mL
  6. 6Current Hourly Rate= 562.5 mL/h
  7. 7Volume That Should Have Been Given by Now= 1,125 mL

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • This reproduces a published formula for educational and reference use only. It is not a diagnostic tool, does not account for individual clinical context, and must not be used to make or change treatment decisions. Clinical assessment by a qualified healthcare professional is always required. Significant burns are a medical emergency requiring immediate specialist care. Call emergency services. Fluid resuscitation must be titrated against clinical response by trained clinicians, and this formula only provides an initial estimate.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

This reproduces a published formula for educational and reference use only. It is not a diagnostic tool, does not account for individual clinical context, and must not be used to make or change treatment decisions. Clinical assessment by a qualified healthcare professional is always required. Significant burns are a medical emergency requiring immediate specialist care. Call emergency services. Fluid resuscitation must be titrated against clinical response by trained clinicians, and this formula only provides an initial estimate.

Frequently Asked Questions

How is Parkland Formula calculated?

Total 24 hour volume = 4 mL × weight in kg × per cent TBSA, half in the first 8 hours Half the calculated volume is given in the first eight hours from the time of injury rather than from presentation, so delayed presentation compresses the remaining time. Superficial erythema is excluded from the TBSA estimate.

Why does Parkland Formula matter?

The formula is a starting point that must be titrated against urine output, because both under and over resuscitation cause serious harm.

What values do I need to enter?

This calculator takes 4 inputs: Body weight, Burn surface area, Formula factor, Hours since injury. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

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