Body Surface Area (BSA) Calculator
Understanding Body Surface Area (BSA)
Body Surface Area (BSA) is the total surface area of the human body. It is used in medicine for various purposes, such as calculating drug dosages (especially for chemotherapy) and assessing burn severity.
This calculator offers several common formulas:
Mosteller Formula (1987):
- BSA (m²) = √((Height(cm) × Weight(kg)) / 3600)
Du Bois Formula (1916):
- BSA (m²) = 0.007184 × Height(cm)0.725 × Weight(kg)0.425
Haycock Formula (1978):
- BSA (m²) = 0.024265 × Height(cm)0.3964 × Weight(kg)0.5378
Gehan and George Formula (1970):
- BSA (m²) = 0.0235 × Height(cm)0.42246 × Weight(kg)0.51456
Boyd Formula (1935):
- BSA (m²) = 0.0003207 × Height(cm)0.3 × (Weight(g)(0.7285 – (0.0188 × LOG10(Weight(g)))))
- Note: For Boyd, weight is converted to grams internally.
Disclaimer: These formulas provide estimates. BSA calculations can vary between formulas. For clinical decisions, always refer to institutional guidelines or consult a healthcare professional.
Estimate your body surface area using various formulas.
Note: This calculator provides an estimate. Actual BSA can vary. The Mosteller formula is commonly used for its simplicity.
Your Estimated Body Surface Area:
m²
Calculated using:
Notes:
- BSA is typically measured in square meters (m²).
- Different formulas can yield slightly different results.
- This is an estimate. Consult a healthcare professional for medical advice.
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