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Body Surface Area Calculator for Men and Women

Body surface area calculator
Body surface area calculator

Our precise and user-friendly BSA calculator helps you find your actual body surface area. This calculation is significantly used for health and fitness purposes.

Weight Gain Calculator

System

Enter your height

How to Calculate Body Surface Area?

Our Body Surface Area is calculated based on height and weight. Follow these simple steps to calculate the surface area of your body through this BSA measurement tool.

Step 1: Choose the measurement system, i.e., either imperial or metric.

Step 2: Enter your height in centimeters.

Step 3: Enter your weight in kilograms.

Step 4: Click calculate.

That’s it. The BSA calculator will calculate the surface area based on each individual’s body weight and height.

Formula to Calculate Body Surface Area

There are various formulas used to calculate BSA over the years. Du Bois is the most effective of all these methods in calculating the body mass of underweight, overweight, and ideal-weight persons. Let’s get a sneak peek into these standard BSA formulas.

Mosteller Formula

BSA = 0.016667 × W0.5 × H0.5

where W is the weight (kg/lbs) and H is the height (cm/inch) of the person.

Du Bois Formula

BSA = 0.007184 × W0.425 × H0.725

Boyd Formula

BSA = 0.03330 × W(0.6157 – 0.0188 × log10(W) × H0.3

Takahira Formula

BSA = 0.007241 × W0.425 × H0.725

Gehan and George Formula

BSA = 0.0235 × W0.51456 × H0.42246

Haycock Formula

BSA = 0.024265 × W0.5378 × H0.3964

Fujimoto Formula

BSA = 0.008883 × W0.444 × H0.663

Schlich Formula

There are different formula equations based on gender.

For Women, BSA = 0.000975482 × W0.46 × H1.08

For Men, BSA = 0.000579479 × W0.38 × H1.24

What is Body Surface Area?

body surface area value for men and women
body surface area value for men and women

Since the human body is a huge and complex structure, it is complicated to measure its surface area. In the olden times, scientists measured the body’s surface area using paper strips and melted paraffin.

After the paper pieces were removed, they were cut into regular shapes to get the exact measurements. Hence, it is proved the total body surface area is dependable upon the height and weight of a person’s body.

There should be a formula that determines the body surface area based on height and weight. BSA provides that formula to determine the exact calculations.

Apparently, BSA is used to determine the metabolic mass of a body. The metabolic mass is the fat-free mass and does not consider the body fat, i.e., the non-metabolically active mass.

What is the Standard BSA?

The BSA differs for each age group. It would be different for an adult individual and a kid. However, the standard BSA is 1.7 m2.

Adult Men1.9 m2
Adult Women1.6 m2
2-year-old child0.5 m2
10-year-old child1.14 m2
Neonate0.25 m2

What are the Applications of BSA?

The Body Surface Area has wide applications in the medical and health fields. It is used in various clinical calculations such as cardio index or chemotherapy dosages.

Although a few debates do not consider BSA a standard for dosage measurements, the researchers still think BSA measurements are a better alternative to determine medicinal dosages, especially while treating cancer through chemotherapy.

An accurately measured BSA has the following uses:

  • According to NCBI, BSA helps in determining the chemotherapy dose in cancer patients.
  • BSA calculation analyzes heart performance based on a person’s body surface area.
  • Based on the BSA calculations, glucocorticoid dosing is suggested.
  • To calculate the glomerular filtration rate, BSA calculation is required.
  • The BSA results can often be used in the organ transplantation process.

 Frequently Asked Questions (FAQs)

Which is the most widely used BSA formula?

The Mosteller formula is used the most to measure the body surface area.

What is the major difference between BSA and BMI?

BMI is the calculation of the total body mass of a person, while BSA measures the body surface area.

What is the average BSA range for an adult man?

The average BSA value for adult men is 1.9 m2.

What is the average BSA for an adult woman?

The average BSA value for an adult woman is 1.6 m2.

Bottom Line

The Body Surface Area calculator is simple and has a straightforward interface. Once you enter the required details, the BSA calculator will provide you with the optimum BSA value based on your height and weight. The results derived from the BSA calculator are extremely helpful in determining drug dosage.

However, the dosage amount can only be consulted with the doctors rather than determined on your own. The body surface area is measured in squared meters. It is different for each individual, be it an adult man, an adult woman, or a kid.

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