BMITool · BMI & health guides
Mosteller vs Du Bois BSA: What Is the Difference?
Mosteller and Du Bois are two established equations for estimating body surface area. Both use height and weight, but they do not use the same mathematical structure. Mosteller for
Mosteller and Du Bois are two established equations for estimating body surface area. Both use height and weight, but they do not use the same mathematical structure.
Mosteller formula
Mosteller is commonly written as BSA = √[(height in cm × weight in kg) ÷ 3600]. Its simplicity makes it easy to reproduce and audit.
Du Bois and Du Bois formula
The Du Bois equation is BSA = 0.007184 × height0.725 × weight0.425, with height in centimetres and weight in kilograms.
Why answers can differ
They were developed from different mathematical models and historical reference data. A difference between estimates does not automatically mean that one calculation is an error.
Our BSA calculator displays both equations so the method remains visible.
Related BMI information
You can also use Open the BMI calculator and Read more helpful articles as part of your workflow.
Using a Mosteller vs Du Bois BSA can make this task easier and more efficient when you need a simple online solution.
Practical tips for better results
Before using Mosteller vs Du Bois BSA: What Is the Difference?, check the original file or information carefully and decide what result you need. A clear starting point makes the process easier to manage and helps you avoid unnecessary changes. If you are working with an online utility, review the available options before processing your file so you can choose settings that match the task.
For regular workflows, keep your files organized and compare the result with the original after processing. This is particularly useful when quality, formatting, compatibility, or file size matters. If the first result is not ideal, adjust the available settings and try again rather than changing several things at once. The goal of a Mosteller vs Du Bois BSA workflow is to save time while keeping the final result accurate and usable.