Body Surface Area Calculator

Calculate Body Surface Area (BSA) using the Mosteller formula, a medical-grade reference.

Enter Your Details

We use the Mosteller formula, which is widely used in clinical practice.

Height *

Weight *

Enter height and weight to compute Body Surface Area.

What your result means

Body Surface Area estimates your total skin area, used clinically for dosing and physiological scaling.

Good to know

It is a mathematical estimate, not a measure of health, fitness or body fat.

A number is a starting point, not a plan. Discuss your result with a doctor

Calculate your total body surface area using medical formulas. Commonly used in clinical assessments and advanced health evaluations.

How this is calculated

Mosteller: BSA (m²) = √((height_cm × weight_kg) / 3600)

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Disclaimer

These calculators provide general health and fitness estimates based on the information entered and standard scientific formulas. They are intended for educational and informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Results may vary based on individual health conditions, body composition, lifestyle, medications, and clinical factors. Always consult a qualified healthcare professional or doctor before making significant changes to your diet, exercise routine, medication, or health management plan.