Haycock BSA Calculator (Paediatric-Validated)
The BSA formula validated from premature infants to adults — the paediatric nephrology standard.
Haycock validated against geometric measurement in 81 subjects from 21-week premature infants to adults — the widest size range of any BSA formula, which is why paediatric units prefer it. Defaults model a 4-to-5-year-old; any clinical use must be verified by the treating team.
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 BSA formula validated from premature infants to adults — the paediatric nephrology standard. The Haycock BSA Calculator (Paediatric-Validated) is a free, private haycock bsa tool — every result computes instantly in your browser with no sign-up and no data upload.
About Haycock BSA Calculator (Paediatric-Validated)
Haycock validated against geometric measurement in 81 subjects from 21-week premature infants to adults — the widest size range of any BSA formula, which is why paediatric units prefer it. It applies BSA = 0.024265 × W^0.5378 × H^0.3964. Use the Haycock BSA Calculator (Paediatric-Validated) 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 Haycock BSA Calculator (Paediatric-Validated)
- 1Enter your details in the Haycock BSA Calculator (Paediatric-Validated) 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 Haycock BSA Calculator (Paediatric-Validated)?
- ✓Instant haycock 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 (Haycock GB et al., J Pediatr 1978;93:62-6)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Haycock BSA Calculator (Paediatric-Validated) work?+
Haycock validated against geometric measurement in 81 subjects from 21-week premature infants to adults — the widest size range of any BSA formula, which is why paediatric units prefer it. The calculation uses the formula: BSA = 0.024265 × W^0.5378 × H^0.3964. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Haycock BSA Calculator (Paediatric-Validated) accurate, and what is it based on?+
The method is traceable to authoritative sources: Haycock GB et al., J Pediatr 1978;93:62-6. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Haycock BSA Calculator (Paediatric-Validated) 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 Haycock BSA Calculator (Paediatric-Validated) for?+
It's commonly used for haycock bsa, pediatric bsa, infant body surface area. The BSA formula validated from premature infants to adults — the paediatric nephrology standard.
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