Healthy weight range: BMI × height (m)², using the normal band of the selected standard. Broca modified formula: male = (height cm − 100) × 0.9; female = (height cm − 100) × 0.85. Lorentz (Dutch): male = height cm × (50 + 9 × (height cm − 150)/100); female = height cm × (45.5 + 9 × (height cm − 150)/100). Source: Wikipedia — Body mass index
Ideal Weight Calculator
Two numbers tell you whether your weight is in a healthy range: the healthy range (from a BMI normal band — region-dependent) and the reference single point (Broca / Lorentz formula). Together they are more useful than any one number alone.