288 free calculators - no signup required

CalcHive: Free Online Calculators for Finance, Health & More

288 professional tools for finance, health, freelancing, and creator analytics - delivering accurate answers instantly, with no account required.

Browse All 288 Tools

288+ Professional Tools0 Signups RequiredPrivacy-FirstUsed Worldwide

No Signup100% FreeInstant ResultsMobile ReadyTrusted Formulas

Popular right now

Mortgage CalculatorBMI CalculatorGPA CalculatorAge CalculatorScientific Calc

Body Surface Area Calculator – Calculates total body surface area, often used ...

The Body Surface Area Calculator calculates total body surface area, often used for medication dosing. This Body Surface Area Calculator uses an established clinical or fitness formula to give you a personalised estimate in seconds. Results are for educational reference — for specific health decisions, discuss with your doctor.

The formula behind this calculator: Commonly uses the DuBois formula: BSA = 0.007184 x weight(kg)^0.425 x height(cm)^0.725. As a practical example: A 70kg, 175cm adult has a BSA of about 1.85 square meters. All results are calculated instantly in your browser — no data is stored or transmitted.

Body Surface Area Calculator FAQ

What does the Body Surface Area Calculator calculate?

Calculates total body surface area, often used for medication dosing.

Should I use metric or imperial units?

Either — the calculator accepts both. Metric values (kg, cm) tend to have simpler conversion paths in the underlying formulas.

How accurate are these health estimates?

Results are based on validated formulas but cannot account for individual variation. They're useful as guidelines, not clinical measurements.

Is my data sent to a server?

No — calculations run directly in your browser. Your inputs are not stored or transmitted.