BMI & Body Surface Area (BSA) Calculator
Calculate Body Mass Index and Body Surface Area using validated formulas
BMI Result:
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BMI Interpretation
Underweight: BMI < 18.5
Normal weight: BMI 18.5-24.9
Overweight: BMI 25-29.9
Obesity Class I: BMI 30-34.9
Obesity Class II: BMI 35-39.9
Obesity Class III: BMI ≥ 40
Body Surface Area (BSA)
BSA is used for medical dosage calculations and physiological assessments.
Mosteller Formula: BSA = √[(Height × Weight) / 3600]
DuBois Formula: BSA = 0.007184 × Weight^0.425 × Height^0.725
This calculator is for educational purposes only and should not replace professional medical advice. Always consult with a healthcare provider for medical decisions.