Ideal Weight Calculator – Devine, Robinson & Miller
Estimate classic ideal-weight formulas from your height and sex.
- Free
- Instant result
- Private · on-device
- No sign-up
How to use: Choose sex units and height. See Devine, Robinson and Miller estimates plus a BMI healthy band.
How to use the Ideal Weight Calculator
Enter your height and choose a formula: Devine, Robinson, Miller, or Hamwi. Each formula was developed for clinical or life-insurance contexts and produces a slightly different “ideal” body weight for a given height and sex category.
The calculator reports the estimate in kilograms and pounds so you can compare with clinic charts. Ideal weight is not the same as healthy weight range; BMI and body composition matter more for most people.
Use the result as one reference point among many—athlete muscle mass, age, and medical conditions can make a formula target inappropriate. Prefer clinician guidance over any online estimate for personal health decisions.
Pair this tool with our BMI and calorie calculators when you want a broader picture of weight status and daily energy needs. None of these tools diagnose disease.
Formulas assume adult proportions. They are not validated for children, pregnancy, or certain medical conditions. When in doubt, ask a qualified healthcare professional.
Frequently asked questions
What is the Devine ideal weight formula?
Men: 50 + 2.3×(inches over 60). Women: 45.5 + 2.3×(inches over 60).
Is ideal weight the same as healthy BMI?
Not exactly. BMI gives a range; IBW formulas give a single point estimate.
Should I aim for this number?
Treat it as educational. Personal goals belong with a healthcare professional.
Does muscle mass change ideal weight?
Yes — formulas ignore body composition.