Calculate ideal body weight based on height and frame
Ideal body weight formulas estimate a healthy weight range based on height. Multiple formulas exist (Devine, Robinson, Miller, Hamwi) because there's no single ideal weight for everyone. These calculations provide reference points, but optimal weight varies by body composition, age, and individual factors.
Devine (Men): 50 kg + 2.3 kg × (height in inches - 60)
| Calculation | Expression | Result |
|---|---|---|
| Male 5'10" | 178 cm male | 65-75 kg |
| Female 5'5" | 165 cm female | 52-62 kg |
Different formulas (Devine, Robinson, Miller, Hamwi) were developed for different purposes and populations. They vary in calculations and results. No single formula works for everyone. Consider multiple formulas and use the range as a general guide.
Frame size (bone structure) affects healthy weight ranges. Measure wrist circumference relative to height to determine frame size. Large-framed individuals may healthily weigh 10% above formula results; small-framed may be 10% below.
Yes, most formulas have different calculations for men and women because of differences in body composition, bone density, and muscle mass. Men typically have higher ideal weight calculations for the same height due to greater muscle mass.
Not necessarily. Ideal weight formulas provide mathematical estimates, while healthy weight considers individual factors like muscle mass, age, health conditions, and lifestyle. Someone might be healthy at a weight outside calculated ranges.
Athletes often weigh more than formulas suggest due to muscle mass, which weighs more than fat. A muscular athlete may be perfectly healthy 20-30+ pounds above their calculated ideal weight. Body composition measurements are more useful for athletes.
These formulas are designed for adults (typically 18+). Children and teens should use age-specific growth charts. For older adults, slightly higher weights may actually be protective, and maintaining muscle mass becomes more important than hitting a specific number.