Ideal Weight Calculator
Estimate your ideal body weight from your height and sex using several established formulas, plus the healthy weight range for your height.
| Formula | Ideal weight |
|---|---|
| Devine | 161 lb |
| Robinson | 157 lb |
| Miller | 155 lb |
| Healthy BMI range | 129–174 lb |
"Ideal weight" formulas are rough guides based only on height and sex; they don't account for build, muscle, or frame size. Not medical advice.
How to use this calculator
Select your sex and enter your height. The calculator shows an averaged ideal weight, the healthy BMI-based range, and the result from each classic formula.
How ideal weight formulas work
Each formula starts from a base weight at 5 feet tall and adds a set amount for every inch above that. They differ slightly in those constants, which is why the estimates vary. The BMI range gives a complementary, widely used band.
Worked example
For a 5'10" man, the formulas land around 160–170 lb, and the healthy BMI range is roughly 129–173 lb.
A rough guide based on height and sex only. Not medical advice.
Frequently asked questions
How is ideal weight calculated?
Classic formulas (Devine, Robinson, Miller) estimate ideal weight from height and sex, adding a fixed amount per inch over 5 feet. We also show the healthy weight range based on a BMI of 18.5–24.9.
Which formula is best?
None is definitive — they were built for different purposes (the Devine formula originated for medication dosing). The healthy BMI range is often the most practical guide. The calculator shows all of them.
Does ideal weight account for muscle or frame?
No. These formulas use only height and sex, so they can't reflect a muscular build or a larger or smaller frame. Treat the result as a ballpark, not a target.
What's a healthy weight range for me?
The BMI-based range (18.5–24.9) for your height is a reasonable healthy band for most adults. Talk to a healthcare provider for individualized guidance.