Robinson Formula Reference Weight
Robinson 1983 modification of Devine (52/49 kg base, 1.9/1.7 kg per inch) — a gentler clinical reference line.
Robinson re-fitted Devine's line against actuarial data and produced slightly lower slopes — at tall heights it reads a few kilograms below Devine. Pharmacy references list both; the spread between formulas is itself a reminder that 'ideal weight' is a modelling convention, not biology.
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.
Robinson 1983 modification of Devine (52/49 kg base, 1.9/1.7 kg per inch) — a gentler clinical reference line. The Robinson Formula Reference Weight is a free, private robinson formula tool — every result computes instantly in your browser with no sign-up and no data upload.
About Robinson Formula Reference Weight
Robinson re-fitted Devine's line against actuarial data and produced slightly lower slopes — at tall heights it reads a few kilograms below Devine. It applies IBW = 52 kg + 1.9 kg/in (M) · 49 kg + 1.7 kg/in (F) over 5 ft. Use the Robinson Formula Reference Weight 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 Robinson Formula Reference Weight
- 1Enter your details in the Robinson Formula Reference Weight 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 Robinson Formula Reference Weight?
- ✓Instant robinson formula 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 (Robinson JD et al., Am J Hosp Pharm 1983;40:1016-9)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Robinson Formula Reference Weight work?+
Robinson re-fitted Devine's line against actuarial data and produced slightly lower slopes — at tall heights it reads a few kilograms below Devine. The calculation uses the formula: IBW = 52 kg + 1.9 kg/in (M) · 49 kg + 1.7 kg/in (F) over 5 ft. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Robinson Formula Reference Weight accurate, and what is it based on?+
The method is traceable to authoritative sources: Robinson JD et al., Am J Hosp Pharm 1983;40:1016-9. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Robinson Formula Reference Weight 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 Robinson Formula Reference Weight for?+
It's commonly used for robinson formula, ideal weight robinson, ibw robinson 1983. Robinson 1983 modification of Devine (52/49 kg base, 1.9/1.7 kg per inch) — a gentler clinical reference line.
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