| Height | Ideal Weight (Male) | Ideal Weight (Female) |
|---|
No single formula is universally most accurate. The Devine formula (1974) is widely used in medicine for drug dosing. Robinson (1983) and Miller (1983) were proposed as improvements. Each gives slightly different values, so showing the range gives a more realistic picture of healthy weight.
The most common formulas for ideal body weight in metric are: Devine: Males: 50 + 2.3 × (height in cm − 152.4) / 2.54; Females: 45.5 + 2.3 × (height − 152.4) / 2.54. Robinson: Males: 52 + 1.9 × (height − 152.4) / 2.54; Females: 49 + 1.7 × (height − 152.4) / 2.54. Miller: Males: 56.2 + 1.41 × (height − 152.4) / 2.54; Females: 53.1 + 1.36 × (height − 152.4) / 2.54.
Ideal weight formulas provide a mathematical estimate, but "healthy weight" depends on many individual factors including muscle mass, bone density, age, and fitness level. These formulas were originally developed for medication dosing rather than general health guidance. BMI (18.5–24.9) is another widely used benchmark for healthy weight ranges.