Body Surface Area Calculator

Body Surface Area Calculator

Calculate body surface area using multiple formulas

Note: This calculator uses multiple formulas to estimate body surface area. BSA is commonly used for medication dosing and medical assessments.

Patient Information

Calculation Method

Body Surface Area
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Formula Used
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All Methods Comparison
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BMI
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Clinical Applications

  • Medication Dosing: Many drugs are dosed based on BSA
  • Chemotherapy: Cancer treatment doses often calculated by BSA
  • Burn Assessment: Burn severity and fluid resuscitation
  • Cardiac Index: Cardiac output normalized to BSA
  • Metabolic Rate: Basal metabolic rate calculations

Formula Information

  • DuBois & DuBois: Most widely used, validated in adults
  • Mosteller: Simple formula, good for quick calculations
  • Haycock: Better for children and infants
  • Gehan & George: Alternative adult formula
  • Boyd: Age-specific formula
Important: This calculator provides estimates only. For clinical use, always verify measurements and use appropriate formulas for specific patient populations. Consult with healthcare providers for medical dosing decisions.
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