🧬 Body Surface Area
Calculate body surface area from height and weight.
Results are estimates for information only and are not medical advice. See our disclaimer.
How to use the Body Surface Area
- Enter Weight kg, Height cm.
- The result updates instantly as you type.
- Copy or note down your result.
How it works
Mosteller formula: BSA = square root of (height in cm x weight in kg / 3600).
Example
Using the default values (Weight kg: 70, Height cm: 170):
Body surface area1.82 m²
FAQ
Is the Body Surface Area free to use?
Yes. It is free, needs no signup and has no usage limits.
Is my data safe?
Yes. Everything is calculated in your browser, so what you type or upload is never sent to a server.
Can I use it on my phone?
Yes. KsWebProduction is built mobile-first and works in any modern browser.