BMI
Same plain method, different figures.
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Body
Ideal Weight Calculator
See your ideal body weight by four formulas, plus the healthy BMI range.
Ideal weight
—
Devine formula.
| Hamwi | — |
|---|---|
| Robinson | — |
| Miller | — |
| Healthy BMI range | — |
Show our math
Enter your figures above to see the step-by-step working.
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How the Ideal Weight Calculator Works
“Ideal body weight” is an estimate used in medicine and fitness, based mostly on height and sex. This calculator shows four classic formulas — Devine, Hamwi, Robinson and Miller — which all start from a base weight at five feet tall and add a set amount per inch above that. It also gives the healthy weight range from the BMI scale (18.5–24.9).
These formulas don’t account for build, muscle or frame size, so they’re a reference point rather than a target. The BMI range is often the more useful guide for a healthy weight.
Devine: men 50 kg + 2.3 kg/in over 5 ft · women 45.5 kg + 2.3 kg/in
Frequently Asked Questions
What is ideal body weight?
A height-and-sex based estimate of a healthy weight, originally developed for medication dosing. Several formulas exist; this shows the main four plus the BMI range.
Which ideal weight formula is best?
They give similar numbers. Devine is the most widely used clinically, but the healthy BMI range is often a better everyday guide.
Does ideal weight account for muscle?
No. These formulas use only height and sex, so very muscular or large-framed people may sit above the “ideal” and still be healthy.
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