Body Surface Area Calculator
Calculate your Body Surface Area (BSA) using the Mosteller formula - commonly used in medical settings.
Body Type
Year Standard
BSA Result
Average BSA Values
Men
~1.7 m²
Women
~1.6 m²
Result Interpretation
Enter your weight and height to see your BSA result and interpretation.
Authority Source
This calculator uses the Mosteller formula, which is the most commonly used method for BSA calculation in clinical practice.
BMI Standards by Ethnicity
Compare health standards across major US ethnic groups
| Ethnic Group | Underweight | Normal | Overweight | Obese |
|---|---|---|---|---|
| Asian American | < 18.5 | 18.5 - 22.9 | 23.0 - 27.4 | ≥ 27.5 |
| White/Caucasian | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| African American | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| Hispanic/Latino | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
| Native American | < 18.5 | 18.5 - 24.9 | 25.0 - 29.9 | ≥ 30.0 |
These standards are based on CDC, WHO, and NIH research. Individual health assessments may vary. Consult a healthcare provider for personalized advice.
Real-Life Case Studies
Learn from real people's health journeys
John's Journey to Healthy BMI
John, 45, 5'9", 210 lbs
Initial Status
Obese
BMI: 31.8
Goal Status
Normal
BMI: 24.5
Changes Made
- Reduced daily calorie intake by 500 kcal
- Increased physical activity to 150 mins/week
Results
- Lost 45 lbs over 6 months
- BMI reduced from 31.8 to 24.5
Maria's Body Fat Transformation
Maria, 32, 5'5", 165 lbs
Initial Status
Overfat
Body Fat: 38%
Goal Status
Fit
Body Fat: 28%
Changes Made
- Started strength training 3x/week
- Added HIIT cardio 2x/week
Results
- Body fat decreased from 38% to 28%
- Lean muscle mass increased by 8 lbs
Chen's Asian BMI Awareness
Chen, 35, 5'8", 160 lbs
Initial Status
Overweight (Asian)
BMI: 25.2
Goal Status
Normal (Asian)
BMI: 22
Changes Made
- Adopted portion control
- Incorporated daily walking
Results
- BMI reduced from 25.2 to 21.8
- Lowered risk of type 2 diabetes
Understanding Body Surface Area
What BSA Measures
Body Surface Area (BSA) is a measure of total body surface area. It is used in medicine to calculate drug dosages and assess burn injuries.
Calculation Methods
Common formulas include the Du Bois formula, Mosteller formula, and Haycock formula. Each provides slightly different results but are generally comparable.
Medical Applications
BSA is used to determine chemotherapy doses, antibiotic dosing, and fluid resuscitation in burn patients. It provides a more accurate basis than body weight alone.
Normal BSA Ranges
Average BSA for adult men is about 1.9 m², and for adult women is about 1.6 m². BSA increases with height and weight.
Real-Life Case Studies
Learn from real people's health journeys
John's Journey to Healthy BMI
John, 45, 5'9", 210 lbs
Initial Status
Obese
BMI: 31.8
Goal Status
Normal
BMI: 24.5
Changes Made
- Reduced daily calorie intake by 500 kcal
- Increased physical activity to 150 mins/week
Results
- Lost 45 lbs over 6 months
- BMI reduced from 31.8 to 24.5
Maria's Body Fat Transformation
Maria, 32, 5'5", 165 lbs
Initial Status
Overfat
Body Fat: 38%
Goal Status
Fit
Body Fat: 28%
Changes Made
- Started strength training 3x/week
- Added HIIT cardio 2x/week
Results
- Body fat decreased from 38% to 28%
- Lean muscle mass increased by 8 lbs
Chen's Asian BMI Awareness
Chen, 35, 5'8", 160 lbs
Initial Status
Overweight (Asian)
BMI: 25.2
Goal Status
Normal (Asian)
BMI: 22
Changes Made
- Adopted portion control
- Incorporated daily walking
Results
- BMI reduced from 25.2 to 21.8
- Lowered risk of type 2 diabetes
Understanding Body Surface Area
What BSA Measures
Body Surface Area (BSA) is a measure of total body surface area. It is used in medicine to calculate drug dosages and assess burn injuries.
Calculation Methods
Common formulas include the Du Bois formula, Mosteller formula, and Haycock formula. Each provides slightly different results but are generally comparable.
Medical Applications
BSA is used to determine chemotherapy doses, antibiotic dosing, and fluid resuscitation in burn patients. It provides a more accurate basis than body weight alone.
Normal BSA Ranges
Average BSA for adult men is about 1.9 m², and for adult women is about 1.6 m². BSA increases with height and weight.