Body Surface Area (Mosteller Formula) = √ [(Height (cm) × Weight (kg)) ÷ 3600]

Body Surface Area (BSA) cannot be measured practically. It is only a general estimation basing on body height and weight. There are a number of formulas for calculating the estimated BSA, including Mosteller, Du Bois and Du Bois, Haycock et al, Boyd, and Gehan and George. The formula used on this page is the Mostella Formula, as per Australian Medicine Handbook (AMH).

The limitation for using BSA calculation would be the consistency in obese patients, where their actual body weight would be significantly larger than the ideal body weight. The discordance could lead to potential under or overdosing.

1. Australian Medicines Handbook (AMH) - Calculators / Body Surface Area Calculator
https://amhonline.amh.net.au/calculators/bodysurfacearea?menu=banner

2. PubMed Central® - Not All Body Surface Area Formulas Are the Same, but Does It Matter?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5493254/

All calculators have been designed and tested for accuracy to the best of our knowledge. However, DoseMaster Pty Ltd does not make any promises or give any warranties about its absolute accuracy, reliability, completeness or suitability for any particular purpose. It is highly recommended to re-test your calculation repeatedly before any decision is made. The information provided are for general advice only and should not be relied on as personal advice. Each individual is subject to their own health/medical conditions, please always seek professional guidance from qualified healthcare professionals. To the extent permissible by law, DoseMaster Pty Ltd will not be liable for any expenses, losses, damages (including indirect or consequential damages), costs, injury, medical error, physical and mental harm or impairment, death which might be incurred as a result of the information being inaccurate or incomplete in any way and for any reason.

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