How to use the Ideal Weight Calculator
Enter the height and the result appears straight away. Everything runs in your browser, so nothing you type is uploaded.
The formula
Devine (men) = 50 kg + 2.3 kg per inch over 5 feet
Examples
- Man, 175 cm
Devine: 70.5 kg Robinson: 68.9 kg Miller: 68.7 kg Hamwi: 72.0 kg
- Woman, 165 cm
Devine: 56.9 kg Robinson: 57.4 kg Miller: 59.8 kg Hamwi: 56.3 kg
- Man, 190 cm
Devine: 84.0 kg Robinson: 80.1 kg Miller: 77.1 kg Hamwi: 88.0 kg
Limitations and assumptions
Formulas ignore muscle mass, age and frame size and are only rough guides. General estimate for adults, not medical advice. Speak to a doctor or registered dietitian before making significant changes to diet, exercise or health routines.
Frequently asked questions
What is ideal body weight?
A formula-based estimate from height and sex, originally used for drug dosing.
Is it accurate for everyone?
No. It ignores frame size, muscle mass and age. BMI and body fat give additional context.
Which formula is used?
The tool shows several, including Devine.
Should I aim for this weight?
Talk to a doctor about a healthy weight for you.