Ideal weight calculator
Find your ideal weight range using multiple established formulas, in kg or lbs.
How ideal weight is calculated
This calculator uses the Devine formula, one of the most widely cited methods in clinical settings. The formulas are:
Men: Ideal weight (kg) = 50 + 2.3 × (height in inches − 60)
Women: Ideal weight (kg) = 45.5 + 2.3 × (height in inches − 60)
For example, a man who is 175 cm (5'9") tall: 50 + 2.3 × (69 − 60) = 50 + 20.7 = 70.7 kg. Alternative formulas include Robinson (1983), Miller (1983), and Hamwi (1964) — all produce slightly different values. The calculator shows a healthy weight range (±10%) to reflect biological variation. No single number suits every individual: bone density, muscle mass, and body frame all affect what's genuinely healthy for you. Use ideal weight alongside BMI, waist circumference, and a doctor's assessment rather than as a standalone target.