Body Surface Area Calculator
Estimate your body surface area (BSA).
Result
Results are estimates for general information only and are not professional advice.
Body surface area
Body surface area is used in medicine to calculate drug doses and other measures. This calculator uses the Mosteller formula — √(height × weight ÷ 3600) — to estimate BSA in square meters.
Frequently Asked Questions
What is the Body Surface Area Calculator?
Estimate your body surface area (BSA). It runs instantly in your browser and is completely free.
Is the Body Surface Area Calculator free and does it require signup?
Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.
How accurate is the Body Surface Area Calculator?
It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.