Body Surface Area (BSA) is a measurement of the total area of the human body. Unlike body weight or body mass index (BMI), BSA provides a more precise metric for medical dosing, particularly in oncology and nephrology.
You can use our BSA calculator to get instant, formula-based results.
BSA is commonly used to determine correct dosages for medications, especially chemotherapy and other treatments with narrow therapeutic indexes.
It’s also useful for estimating metabolic rate, cardiac output, and renal function.
You can compare all formulas using our BSA Calculator.
Simply enter your height and weight to get your BSA using multiple methods.
No login or signup is required. The tool supports metric and imperial units.
BSA is an essential metric in modern medicine. Understanding it helps both professionals and patients make informed decisions.
For quick, accurate BSA results, use our free calculator.