Health & Fitness
Ideal Weight Calculator
Estimate your ideal body weight for your height using four classic formulas — Devine, Robinson, Miller and Hamwi — alongside the healthy weight range from BMI, so you see a realistic band rather than a single number.
cm
Estimated ideal weight
68.7–72.0 kg
Healthy BMI range: 56.7–76.6 kg
By formula
How to use the ideal weight calculator
Choose your sex and units and enter your height. The calculator shows an ideal-weight range from four established formulas, the value each one gives, and the healthy weight range from BMI. Treat the band as a guide — a healthy weight is one you can maintain.
The formulas
Each is based on a base weight at 5 ft (152 cm) plus a set amount per inch above that. For a man:
Women use slightly lower base weights. Because they disagree by a few kilograms, reading the result as a range is more honest than picking one number.
Frequently asked questions
Ideal body weight (IBW) is an estimate of a healthy weight for your height, originally developed to help doctors with medication dosing. Several formulas exist and give slightly different numbers, so it is best read as a range rather than a single target.