Body Surface Area Calculator
BSA via the Mosteller formula.
Amortization schedule
| # | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
Showing first 12 of months.
Growth over time
| Year | Invested | Value |
|---|---|---|
Introduction
Body Surface Area Calculator — BSA via the Mosteller formula. Enter Weight (kg), Height (cm) to get an instant, accurate result.
Formula
Mosteller formula: BSA (m²) = √((weight(kg) × height(cm)) / 3600).
Step-by-step
- Enter the Weight (kg).
- Enter the Height (cm).
- Click Calculate to see your result instantly.
Real-world example
Example: With Weight (kg) = 70, Height (cm) = 170, the Body Surface Area Calculator gives BSA M2: 1.8181.
Frequently Asked Questions
What is body surface area used for?
It's commonly used in medicine to dose certain medications (especially chemotherapy) proportionally to body size.
Why use the Mosteller formula specifically?
It's one of the simplest and most widely used BSA formulas, valued for being easy to compute while remaining clinically reliable.
What inputs does the Body Surface Area Calculator need?
You'll need to provide: Weight (kg), Height (cm). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Body Surface Area Calculator?
The Body Surface Area Calculator applies the formula exactly as calculated — Mosteller formula: BSA (m²) = √((weight(kg) × height(cm)) / 3600). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is this a medical diagnosis?
No. The Body Surface Area Calculator provides an estimate based on standard formulas and general population data, not a medical diagnosis or personalized clinical advice. Individual results can vary — consult a doctor or other qualified healthcare provider for medical concerns.
Is the Body Surface Area Calculator free to use?
Yes, the Body Surface Area Calculator is completely free, requires no signup, and runs instantly in your browser.
About the Body Surface Area Calculator
The Body Surface Area Calculator uses a real, verifiable formula — Mosteller formula: BSA (m²) = √((weight(kg) × height(cm)) / 3600). — so results are accurate every time, not an approximation.