basic

Paediatric Body Surface Area (Mosteller) Calculator

BSA for children from height and weight (Mosteller formula).

Estimates body surface area for paediatric drug dosing using the Mosteller formula: BSA (m²) = √(height_cm × weight_kg / 3600).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

cm
kg

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

BSA = √(h × w / 3600)

In depth

Estimates body surface area for paediatric drug dosing using the Mosteller formula: BSA (m²) = √(height_cm × weight_kg / 3600).