Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Medicine
Ideal Body Weight Calculator
Estimate ideal body weight in kg from height using the Devine formula, returning a single reference weight for a given sex. Use it as a baseline for medication dosing or clinical assessment, not as a personal weight target.
Fill in the required fields to see your result.
Health
Body Surface Area Calculator
Calculate your Body Surface Area (BSA) in m² using the Mosteller, Haycock, or DuBois formula. Clinicians and pharmacists use BSA to dose chemotherapy, renal drugs, and burn treatments accurately.
Fill in the required fields to see your result.
Key differences
| Ideal Body Weight Calculator | Body Surface Area Calculator | |
|---|---|---|
| Category | Medicine | Health |
| Inputs required | 2 | 3 |
| Result | Ideal Body Weight (kg) | Body Surface Area (m²) |
| What it does | Estimate ideal body weight in kg from height using the Devine formula, returning a single reference weight for a given sex. Use it as a baseline for medication dosing or clinical assessment, not as a personal weight target. | Calculate your Body Surface Area (BSA) in m² using the Mosteller, Haycock, or DuBois formula. Clinicians and pharmacists use BSA to dose chemotherapy, renal drugs, and burn treatments accurately. |