General

BMI + BSA

Calculates BMI, body-surface-area estimates by three methods, and a healthy-weight range.

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Enter the available measurements

Results update instantly as you type.

Unit system

Weight (kg or lb)

Height (cm)

Height (ft, imperial)

Additional height (in)

Selected BSA formula

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For decision support only. This calculator is not a substitute for professional clinical judgment. Verify results against current guidance and the patient's clinical context.

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