Calculate your Body Surface Area (BSA) using the Mosteller formula, commonly used in medicine for drug dosing and clinical assessments.
Body Surface Area is the total surface area of the human body, commonly used in medicine to calculate drug dosages and metabolic rates.
This tool uses the Mosteller formula: BSA in square meters equals the square root of (height in cm times weight in kg, divided by 3600).
Enter your height and weight in centimeters and kilograms, then click Calculate.
Example: A person who is 170cm tall and weighs 65kg has an estimated BSA of approximately 1.76 square meters.
Why is BSA used instead of weight alone. BSA correlates well with metabolic mass and is considered more accurate for certain drug dosing calculations than weight alone.
Is this for medical use. This tool is for general informational purposes; medical dosing should always be determined by a healthcare professional.