Ideal Weight Calculator
Calculate your ideal body weight from your height and sex using the Devine, Robinson, Miller, and Hamwi formulas, alongside your healthy BMI weight range.
By Jonas Lindemann · Updated · How we build our calculators
154 lbs
average of four formulas
| Formula | Ideal Weight |
|---|---|
| Devine | 155 lbs |
| Robinson | 152 lbs |
| Miller | 152 lbs |
| Hamwi | 159 lbs |
| Healthy BMI range | 125–168 lbs |
Note: "Ideal weight" formulas are population estimates based only on height and sex; they do not account for muscle, frame size, or body composition. The healthy BMI range is often a more useful target.
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Calculation Method
An ideal body weight estimate gives a healthy target weight range from your height and sex. This calculator averages four classic formulas and shows your healthy BMI range for context.
The Four Formulas
Each adds weight per inch over 5 feet (152 cm):
| Formula | Men (base + per inch > 5ft) | Women |
|---|---|---|
| Devine | 50 + 2.3 kg | 45.5 + 2.3 kg |
| Robinson | 52 + 1.9 kg | 49 + 1.7 kg |
| Miller | 56.2 + 1.41 kg | 53.1 + 1.36 kg |
| Hamwi | 48 + 2.7 kg | 45.5 + 2.2 kg |
The Healthy BMI Range
A BMI of 18.5–24.9 is classed as healthy. For your height, that is a weight range — often a more practical target than a single "ideal" number, because it allows for natural variation in build.
These formulas use only height and sex and ignore muscle and frame size, so athletes may sit above their "ideal" weight while being lean. Use body-fat percentage and waist measurements for a fuller picture.
Frequently Asked Questions
Classic formulas estimate ideal weight from height and sex. For example, the Devine formula is 50 kg (men) or 45.5 kg (women) plus 2.3 kg for every inch over 5 feet. This calculator averages four such formulas.
No single formula is definitive — Devine, Robinson, Miller, and Hamwi give slightly different numbers. The healthy BMI range (18.5–24.9) is often a more practical target because it gives a range rather than one number.
No. Height-and-sex formulas ignore body composition, so muscular people may exceed their 'ideal' weight while being lean and healthy. Use body-fat percentage for a fuller picture.