Body Surface Area Calculator
Estimate body surface area from height and weight using the Mosteller formula, used in some medical dosing. Enter weight and height to see bsa…
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Estimate body surface area from height and weight using the Mosteller formula, used in some medical dosing. Enter weight and height to see bsa (mosteller) when you calculate.
For general information only, not medical advice. Consult a qualified health professional before making health decisions.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (weight = 70 kg, height = 175 cm), the results are: BSA (Mosteller) 1.84 m².
Quick reference: weight vs result
Reference table based on the example values; it is not your calculation result.
| Weight (kg) | BSA (Mosteller) |
|---|---|
| 35 | 1.30 m² |
| 70 | 1.84 m² |
| 140 | 2.61 m² |
| 350 | 4.12 m² |
| 700 | 5.83 m² |
| 1,400 | 8.25 m² |
Frequently asked questions
What formula does this calculator use?
BSA (Mosteller) = sqrt(h × w ÷ 3600). Variables: w = weight in kg, h = height in cm.
What do I need to enter?
You need weight (kg), height (cm). Results update as you type.
What is an example result?
With the default inputs (weight = 70 kg, height = 175 cm), the results are: BSA (Mosteller) 1.84 m².
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