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Body Adiposity  Index

Body Surface Area Calculator (BSA Calculator)

Find your body surface area using your height and weight.

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Body Surface Area (BSA)


Enter your height in feet/inch or cm and weight in pound or kg to find your bsa
   
   
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1.9052 m2

20.5074 ft2

1.9108 m2

20.5677 ft2

1.9177 m2

20.6419 ft2

1.9221 m2

20.6893 ft2

1.8563 m2

19.981 ft2

1.9228 m2

20.6968 ft2

1.9203 m2

20.6699 ft2

1.8102 m2

19.4848 ft2

1.8833 m2

20.2717 ft2

1.9114 m2

20.5741 ft2

1.8784 m2

20.2189 ft2

BSA Formula

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Du Bois Formula

BSA (m2) = Wt(kg)^0.425 x Ht(cm)^0.725 x 0.007184

Mosteller Formula

BSA (m2) = Square root ((Ht (cm) x Wt (kg))/3600)

Haycock Formula

BSA (m2) = Wt(kg)^0.5378 x Ht(cm)^0.3964 x 0.024265

Gehan & George Formula

BSA (m2) = Wt(kg)^0.51456 x Ht(cm)^0.42246 x 0.0235

Fujimoto Formula

BSA (m2) = 0.008883 × Wt(kg)^0.444 × Ht(cm)^0.663

Boyd Formula

BSA (m2) = 0.0003207 x Ht(cm)^0.3 x Wt(kg)^(0.7285 – ( 0.0188 x LOG(Wt (g))))

Takahira Formula

BSA (m2) = 0.007241 × Wt(kg)^0.425 × Ht(cm)^0.725

Schlich Male Formula

BSA (m2) = 0.000579479 × Wt(kg)^0.38 × Ht(cm)^1.24

Schlich Female Formula

BSA (m2) = 0.000975482 × Wt(kg)^0.46 × Ht(cm)^1.08

Lipscombe Formula

BSA (m2) = 0.00878108 × Wt(kg)^0.434972 × Ht(cm)^0.67844

Schuter Formula

BSA (m2) = 0.00949 x Wt(kg)^0.441 × Ht(cm)^0.665

Learn more about Body Surface Area Measurement

FAQ

What is BSA?

  • BSA stands for Body Surface Area It is a measure of the surface area of the human body.

  • It is used clinically for dosage calculation. This is mainly applied in Chemotherapy, Glucocorticoid dosing, IV Fluid administration, Cardiac Index measurement and one of Renal function Measure of GFR (Glomerular Filteration Rate)

  • There are many formulae to calculate BSA. Du bois formula and the simplified formula given by Mosteller are the more popular ones.

  • BSA which is Area is measured in units of sq meter (m 2)

BSA Range

Category

BSA Value (m2)

BSA Value (cm2)

BSA Value (ft2)

Average BSA for men

1.9 m²

19000 cm²

20.5 ft²

Average BSA for women

1.6 m²

16000 cm²

17.2 ft²

Average BSA for child (9 years)

1.07 m²

10700 cm²

11.5 ft²

Average BSA for child (10 years)

1.14 m²

11400 cm²

12.3 ft²

Average BSA for child (12-13 years)

1.33 m²

13300 cm²

14.3 ft²

Frequently Asked Questions on Body Surface Area Calculator

FAQ icon

  • BSA stands for Body Surface Area It is a measure of the surface area of the human body.

  • Body Surface area is calculated using height and weight of a person

  • BSA which is Area is measured in units of sq meter m²

  • It is used clinically for dosage calculation. This is mainly applied in Chemotherapy, Glucocorticoid dosing, IV Fluid administration, Cardiac Index measurement and one of Renal function Measure of GFR (Glomerular Filteration Rate)

  • BSA (m²) = Square root ((Ht (cm) x Wt (kg))/3600)

  • BSA (m²) = Wt(kg)^0.425 x Ht(cm)^0.725 x 0.007184

  • "Normal" BSA is taken to be 1.7 m².