Body Surface Area Mosteller Calculator
Compute patient body surface area using the standardized Mosteller simplified clinical formula.
About the Mosteller Simplified Equation
Published in 1987 in the New England Journal of Medicine, the Mosteller formula simplified clinical BSA calculations without sacrificing mathematical accuracy.
Formula
BSA (m²) = √[ (Height (cm) × Weight (kg)) / 3600 ]
Frequently Asked Questions
Why is Mosteller widely used in hospital settings?
Its simple square-root structure minimizes calculation error while matching the accuracy of older logarithmic equations within 1% to 2%.
Is Mosteller accepted for intravenous medication dosing?
Yes. Most modern oncology pharmacy systems adopt Mosteller as their default automated dosing standard.
How does BSA guide fluid resuscitation in burn medicine?
Resuscitation protocols calculate burned body surface area percentages against total baseline BSA to guide IV crystalloid replacement volume.
How does Mosteller compare to DuBois?
Differences are clinically negligible across standard adult heights and weights, making Mosteller an accepted replacement.
Calculate in three steps
- 1Enter your valuesUse the fields above and check the units shown beside each input.
- 2Run the calculationSelect Calculate to refresh the result with your latest values.
- 3Review or shareCompare the result, reset the form, print it, or share this page.