Harris–Benedict BMR Calculator (Revised 1984)
The classic 1919 metabolic equation in its 1984 Roza–Shizgal revision, with a note on when it over-predicts.
Harris–Benedict was derived in 1919 from indirect calorimetry on 239 subjects and revised in 1984 with a larger dataset. It tends to read ~5% above Mifflin–St Jeor for the same person (the comparison output shows your exact difference) — older equation, leaner historical population.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
The classic 1919 metabolic equation in its 1984 Roza–Shizgal revision, with a note on when it over-predicts. The Harris–Benedict BMR Calculator (Revised 1984) is a free, private harris benedict tool — every result computes instantly in your browser with no sign-up and no data upload.
About Harris–Benedict BMR Calculator (Revised 1984)
Harris–Benedict was derived in 1919 from indirect calorimetry on 239 subjects and revised in 1984 with a larger dataset. It applies M: 88.362 + 13.397W + 4.799H − 5.677A · F: 447.593 + 9.247W + 3.098H − 4.330A. Use the Harris–Benedict BMR Calculator (Revised 1984) 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 Harris–Benedict BMR Calculator (Revised 1984)
- 1Enter your details in the Harris–Benedict BMR Calculator (Revised 1984) 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 Harris–Benedict BMR Calculator (Revised 1984)?
- ✓Instant harris benedict 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 (Harris JA & Benedict FG, PNAS 1918)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Harris–Benedict BMR Calculator (Revised 1984) work?+
Harris–Benedict was derived in 1919 from indirect calorimetry on 239 subjects and revised in 1984 with a larger dataset. The calculation uses the formula: M: 88.362 + 13.397W + 4.799H − 5.677A · F: 447.593 + 9.247W + 3.098H − 4.330A. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Harris–Benedict BMR Calculator (Revised 1984) accurate, and what is it based on?+
The method is traceable to authoritative sources, including Harris JA & Benedict FG, PNAS 1918; Roza AM & Shizgal HM, Am J Clin Nutr 1984;40:168-82. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Harris–Benedict BMR Calculator (Revised 1984) 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 tool is for general information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the Harris–Benedict BMR Calculator (Revised 1984) for?+
It's commonly used for harris benedict, bmr equation, basal metabolic rate. The classic 1919 metabolic equation in its 1984 Roza–Shizgal revision, with a note on when it over-predicts.
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