Ideal Weight Calculator
Compare four classic height-based weight formulas side by side — see the range they suggest instead of a single number. Enter your height, pick a sex, and view all results instantly.
How to use
- Enter your height in centimetres.
- Choose your sex.
- All four formula results appear instantly.
Tips
- The formulas differ because they come from different fields — dosing, insurance and population studies.
- This is a rough estimate, not medical advice.
- Small differences between the four formulas are normal.
- Talk to a health professional for personal health decisions.
Note
All four formulas start from a base weight at 5 feet (152.4 cm) and add a fixed amount per extra inch. They are population formulas from drug-dosing and actuarial work, not personal targets. Estimate only — not medical advice.
Frequently Asked Questions (FAQ)
Which formulas does it use?
It uses four classic height-based formulas: Devine, Robinson, Miller and Hamwi, shown side by side.
What inputs does the ideal weight calculator need?
Your height in centimetres and your sex - all four formula results appear instantly.
Is there one perfect weight?
No, the tool shows a range from several formulas rather than a single magic number.
Can the four formulas give different answers?
Yes. Each formula uses a different equation, so the tool shows all four side by side for comparison.