When is BSA-based dosing used in paediatrics?

BSA-based dosing is standard for oncology drugs (methotrexate, doxorubicin, vincristine), certain antiretrovirals, and immunosuppressants where drug toxicity correlates with body surface area rather than weight.

How does Mosteller BSA compare to DuBois formula?

Mosteller (BSA = √(H×W/3600)) is simpler and widely used in paediatrics. DuBois (BSA = 0.007184 × H^0.725 × W^0.425) was the traditional adult reference. Both are accepted but should not be mixed in a drug-dosing calculation.

Paediatric BSA Dose — Mosteller Formula

Calculate paediatric body surface area using the Mosteller formula (BSA = √(height(cm) × weight(kg) / 3600)) to determine BSA-based drug doses for chemotherapy and medications where dose/m² is specified.

Use the full interactive calculator below, or

Paediatric BSA Dose — Mosteller Formula

Frequently Asked Questions

When is BSA-based dosing used in paediatrics?

How does Mosteller BSA compare to DuBois formula?