Body Surface Area Calculator

Calculate your body surface area (BSA) using multiple formulas for medical dosing and other applications.

Calculate Body Surface Area
Enter your measurements to calculate your BSA

Body Surface Area (BSA) is used to determine medication dosages, adjust cardiac output, and calculate fluid requirements.

Your Results
Your calculated body surface area using different formulas

No Results Yet

Fill out the form and click "Calculate BSA" to see your results here.

What is ?

Formula

There are several formulas for calculating BSA. Here are a few:
DuBois & DuBois: 0.007184 * Weight^0.425 * Height^0.725
Mosteller: √(Weight * Height / 3600)
Haycock: 0.024265 * Weight^0.5378 * Height^0.3964

Interpretation

Body surface area (BSA) is the measured or calculated surface of a human body. For many clinical purposes, BSA is a better indicator of metabolic mass than body weight because it is less affected by abnormal adipose mass.

How to Use

Enter your weightEnter your heightSelect the units (kg/lb and cm/in)Click the Calculate BSA button to get the results