Body Surface Area Explained
Executive Summary
Learn the core logic of Body Surface Area calculator.
Key Takeaways
- Core Formula: Computes yield based on starting allocation.
- Precedence: Resolve principal factors.
- Efficiency: Provides instant analysis.
Formula
BSA = √( (W · H) ÷ 3600 )
Body Surface Area Formula
Variable Glossary
| Symbol | Meaning & Description |
|---|---|
| BSA | Body Surface Area (m²) |
| W | Weight (kg) |
| H | Height (cm) |
Step-by-Step Worked Example
1. Mapped Variables
Weight
70 kg
Height
175 cm
2. Equation Substitution
Equation with standard inputs
BSA = √( (70 · 175) ÷ 3600 )
3. Calculation Steps
Step 1: Multiply Weight by Height
Product = 70 × 175 = 12250
Step 2: Divide by 3600 and take square root
BSA = √(12250 ÷ 3600) = 1.84 m²
Final Resolved Body Surface Area (BSA)1.84 m²
Body Surface Area (BSA) Comparison by Weight (Height 175cm)
BSA (m²)
BSA (m²)
Step-by-Step Worked Example
1. Multiply principal by interest.
2. Divide by 100.
Frequently Asked Questions
Live Simulation
Body Surface Area Calculator Sandbox
Tweak variables below to see the formula calculate instantly.
70
175
Body Surface Area (BSA)
1.84 m²
Equation Used
Mosteller
Mosteller Method
1.84 m²
Du Bois Method
1.85 m²
Haycock Method
1.85 m²
How This Result Is Calculated (Step-by-Step)
Step 1: Multiply Weight by Height
Product = 70 × 175 = 12250
Step 2: Divide by 3600 and take square root
BSA = √(12250 ÷ 3600) = 1.84 m²
Interactive Tool
Body Surface Area Calculator
Calculate Body Surface Area (BSA) using Mosteller, Du Bois, Haycock, Gehan & George, or Boyd formulas.