Du Bois BSA Calculator
The original 1916 body-surface-area formula that a century of physiology and dosing tables were built on.
Du Bois and Du Bois derived these exponents by physically wrapping nine subjects in paper moulds and measuring the moulds — heroic 1916 science. Despite the tiny sample it has held up remarkably; most 'normal BSA = 1.73 m²' conventions (as in eGFR) trace to this work.
Formula
Reference aid for healthcare professionals only. Every result must be independently verified before clinical use. Never use this tool for self-medication or to replace clinical judgement.
The original 1916 body-surface-area formula that a century of physiology and dosing tables were built on. The Du Bois BSA Calculator is a free, private dubois bsa tool — every result computes instantly in your browser with no sign-up and no data upload.
About Du Bois BSA Calculator
Du Bois and Du Bois derived these exponents by physically wrapping nine subjects in paper moulds and measuring the moulds — heroic 1916 science. It applies BSA = 0.007184 × W^0.425 × H^0.725. Use the Du Bois BSA Calculator to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Du Bois BSA Calculator
- 1Enter your details in the Du Bois BSA Calculator input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Du Bois BSA Calculator?
- ✓Instant dubois bsa result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Du Bois D & Du Bois EF, Arch Intern Med 1916;17:863-71)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Du Bois BSA Calculator work?+
Du Bois and Du Bois derived these exponents by physically wrapping nine subjects in paper moulds and measuring the moulds — heroic 1916 science. The calculation uses the formula: BSA = 0.007184 × W^0.425 × H^0.725. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Du Bois BSA Calculator accurate, and what is it based on?+
The method is traceable to authoritative sources: Du Bois D & Du Bois EF, Arch Intern Med 1916;17:863-71. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Du Bois BSA Calculator free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This is a reference aid for healthcare professionals and must be independently verified. It is not for self-diagnosis or self-medication.
What can I use the Du Bois BSA Calculator for?+
It's commonly used for dubois bsa, du bois formula, body surface area 1916. The original 1916 body-surface-area formula that a century of physiology and dosing tables were built on.
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