BSA Calculator Schlich formula

Calculate Body Surface Area (BSA)







What is Body Surface Area (BSA)?

Body Surface Area (BSA) is a measurement used in many medical tasks, including determining the correct dosages for medications and assessing metabolic mass. It provides a more accurate measure of the body's surface area than simple height and weight measurements.

Formula

The Schlich formula for calculating BSA is given by:

For women:

\[ \text{BSA} = 0.000975482 \times W^{0.46} \times H^{1.08} \]

For men:

\[ \text{BSA} = 0.000579479 \times W^{0.38} \times H^{1.24} \]

where:

BSA Formula Step by Step Example Calculation

Let's assume the following values:

Using the formula for women:

\[ \text{BSA} = 0.000975482 \times 70^{0.46} \times 175^{1.08} \]

Calculating step-by-step:

\[ 70^{0.46} \approx 7.06 \]

\[ 175^{1.08} \approx 264.534 \]

\[ \text{BSA} = 0.000975482 \times 7.06 \times 264.534 \approx 1.83\, \text{m}^2 \]

The calculated Body Surface Area (BSA) for a woman is approximately 1.83 mĀ².