Free Body Surface Area Calculator
BSA by Du Bois, Mosteller and Haycock formulas.
- Free Forever
- No Registration Required
- Instant Results
- Downloadable Reports
- Mobile Friendly
Inputs
Result
BSA (Mosteller)
1.83 m²
Your result is ready.
Download your free detailed report — inputs, result, formula and explanation included.
Estimates only. Verify with a professional for consequential decisions.
- Always Free
- No Hidden Costs
- No Account Required
- Unlimited Calculations
- Instant Reports
Short answer
BSA by Du Bois, Mosteller and Haycock formulas.
What is the Body Surface Area Calculator?
BSA by Du Bois, Mosteller and Haycock formulas.
How does the Body Surface Area Calculator work?
Enter the inputs above and read the result.
Formula
Variables
BSABody surface area in m²
Explanation
BSA is widely used for dosing medication and indexing cardiac output.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Body Surface Area Calculator sits inside the Health Calculators hub, in the body composition cluster. What body mass is made of and how it is distributed. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Body Surface Area
BSA by Du Bois, Mosteller and Haycock formulas. Within health calculators, body surface area belongs to the body composition cluster, where it shares terminology and assumptions with closely related tools.
Learning how body surface area is calculated
BSA is widely used for dosing medication and indexing cardiac output. Working through the variables one at a time — BSA — makes the result reproducible by hand and easier to sanity-check.
Using body surface area to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How body surface area compares with related measures
fat mass, lean mass, adiposity, percentile all describe adjacent aspects of body composition. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
Related calculators
These tools share entities, formulas or user intent with the body surface area calculator.
Health
Free Army/Navy Body Fat Calculator
Body fat percentage using the U.S. military circumference method.
Health
Free BMI Calculator
Body Mass Index from height and weight, in metric or US units.
Health
Free Body Fat Calculator
Estimate body fat percent from body measurements (US Navy method).
Health
Free Ideal Weight Calculator
Ideal body weight range from height and sex using multiple formulas.
Health
Free Lean Body Mass Calculator
Estimate lean body mass using the Boer formula.
Health
Free Child BMI Percentile Calculator
Approximate BMI percentile for children and teens.
Health
Free Child Height Predictor
Estimate adult height from parents' heights.
Health
Free FFMI Calculator
Fat-Free Mass Index to gauge muscularity.
Health
Free Overweight Calculator
How many pounds you are above a healthy BMI range.