Ideal Weight Calculator
Enter your height and sex to see ideal weight estimates from four well-known formulas.
How to use it
- Choose your sex Each formula adjusts for sex.
- Enter your height In centimetres.
- Compare the estimates Four formulas give a healthy range.
Examples
| M, 180 cm | ~72–75 kg |
|---|---|
| F, 165 cm | ~57–61 kg |
About this tool
“Ideal” body weight formulas were originally created to help with medication dosing, and they remain a handy rule of thumb for a healthy weight range based on your height. Because several formulas exist, this tool shows four of the most common — Devine, Robinson, Miller and Hamwi — so you get a range rather than a single figure.
These estimates use height and sex only, so they can’t account for build, muscle mass or body composition. Treat them as a guide, not a medical target. All calculations run in your browser.
Frequently asked questions
Why four formulas?
There's no single definition of "ideal" weight. Showing Devine, Robinson, Miller and Hamwi gives you a sensible range rather than one number.
Is this a health target?
It's a rough guide based on height alone. It ignores build, muscle and body composition, and is not medical advice.
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Updated June 12, 2026