Body Surface Area (BSA) Dosing Calculator

This calculator is designed for healthcare professionals to determine dosing based on Body Surface Area (BSA), ensuring accurate medication dosing for patients.

BSA Calculator

Results

BSA 0.00 m²

Data Source and Methodology

All calculations are based on the Du Bois formula: Medscape Calculator. All calculations are strictly based on the formulas and data provided by this source.

The Formula Explained

\( BSA = 0.007184 \times \text{Height}^{0.725} \times \text{Weight}^{0.425} \)

Glossary of Terms

Weight (kg): The patient's weight in kilograms.
Height (cm): The patient's height in centimeters.
BSA (m²): Body Surface Area in square meters.

How It Works: A Step-by-Step Example

For a patient weighing 70 kg and 175 cm tall, BSA is calculated as follows:

Using the formula: \( BSA = 0.007184 \times 175^{0.725} \times 70^{0.425} = 1.84 \, m² \)

Frequently Asked Questions (FAQ)

What is BSA used for?

BSA is used to calculate the correct dosage of many medications, especially in oncology.

Why is BSA preferred over BMI?

BSA provides a more accurate estimate of metabolic mass, which is more relevant for dosing.

How do I calculate BSA manually?

You can use the Du Bois formula, but our calculator simplifies this process.

Can BSA be used for children?

Yes, BSA is applicable for dosing in both adults and children.

What if my patient's weight is in pounds or height in inches?

Convert weight to kg and height to cm for accuracy.

Tool developed by Ugo Candido. Content reviewed by the Medscape Team.
Last reviewed for accuracy on: October 5, 2023.