Global Rph Multi BSA Calculator

Body Surface Area Formula (Mosteller):

\[ BSA = \sqrt{\frac{W \times H}{3600}} \]

Body Surface Area (m²):

Definition: BSA is the measured or calculated surface area of the human body, used in many medical measurements including medication dosages.

Purpose: The Mosteller formula provides a simple way to estimate BSA for clinical purposes when direct measurement isn't practical.

The calculator uses the Mosteller formula:

\[ BSA = \sqrt{\frac{W \times H}{3600}} \]

Where:

Explanation: The product of weight and height is divided by 3600, then the square root is taken to get BSA in m².

Details: BSA is used to calculate medical indices like cardiac index and chemotherapy dosages, and to assess metabolic mass.

Tips: Enter weight in kilograms and height in centimeters. All values must be > 0.

Q1: Why use Mosteller formula instead of others?
A: Mosteller is simple, validated, and commonly used in clinical practice with good accuracy.

Q2: How accurate is this calculation?
A: It's accurate for most clinical purposes, though individual variations exist.

Q3: Can I use pounds and inches?
A: The formula requires kg and cm. Convert pounds to kg (1 lb = 0.4536 kg) and inches to cm (1 in = 2.54 cm).

Q4: What's a typical BSA range?
A: Average is 1.7 m² for adult men, 1.6 m² for adult women, with normal range about 1.4-2.2 m².

Q5: When is BSA particularly important?
A: For chemotherapy dosing, pediatric doses, and medications with narrow therapeutic windows.