BMI
Body mass index from weight and height, using the standard WHO categories for adults.
Open calculatorBody surface area (BSA)
BSA = √(height in cm × weight in kg / 3,600), expressed in m². Widely used in clinical medicine and physiology as a reference metric.
Current body weight in kilograms.
kg
Height in centimetres.
cm
Body surface area (BSA)
1.84
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Average adult BSA is typically around 1.7–2.0 m². Informational calculation only — not a medical prescription.
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Educational estimate only. Not medical, tax, legal or financial advice.