BSA Dosage Calculator
Result
BSA Dosage Calculator Calculate a body-surface-area-based medication dose from a patient's height, weight, and the prescribed dose per square metre. The calculator finds the BSA with the Mosteller formula and multiplies it by the mg/m² dose. — free online calculator.
Formula
- Calculate a body-surface-area-based amount from a BSA value and a prescribed or protocol-supplied amount per square meter. This tool does not choose the dose.
- The main inputs are BSA, Clinician-provided rate. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: BSA Dosage
- BSA: 1.8 m²
- Clinician-provided rate: 1 units/m²
If BSA is 1.8 m² and an authorized protocol supplies 50 mg/m², the arithmetic result is 90 mg.
Sample result: Calculating…
Frequently asked questions
What does the BSA Dosage calculate?
Use only a dose value supplied by an appropriate clinician, prescription, label, or validated protocol. This calculator does not recommend treatment.
Which values should I enter?
Enter BSA, Clinician-provided rate using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Calculated amount = BSA (m²) × prescribed amount per m².
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.