Compare two published population formulas while excluding medication or treatment dosing.
Calculate with the Body Surface Area Calculator
Enter the values below. Required fields are checked before results are shown.
Body Surface Area Calculator results
How to use the Body Surface Area Calculator
- Select the requested method and measurement system where available.
- Enter measurements using the units shown in each label.
- Select Calculate or press Enter.
- Review the method, source, assumptions, limitations, and visible safety note.
Worked example
At 175 cm and 70 kg, Mosteller BSA is about 1.84 m².
Understanding the result
Clinical use requires professional judgement; this calculator does not calculate medication doses.
Assumptions
- Height and weight are measured accurately.
Limitations
- Population formulas can differ from measured surface area.
- Not for chemotherapy or other dosing decisions.
Sources and method references
- Mosteller simplified BSA formula (1987). Published as a concise formula letter.
- Du Bois and Du Bois surface-area formula (1916). Derived from a small historical sample.
Frequently asked questions
Can this result be used for medication dosing?
The result is an educational estimate based on the selected method and entered assumptions. Individual measurements, needs, and outcomes vary.
Does CalculatorCheck store inputs from the Body Surface Area Calculator?
No. The calculation runs locally in your browser; entries are not saved, transmitted, or added to the page URL.
Is this medical or dietary advice?
No. It does not diagnose, treat, or prescribe for any condition.