Ideal Weight Calculator
Ideal weight
Clinical Anthropometric Profiling
About the Ideal Weight Calculator
Ideal body weight formulas estimate a healthy weight for a given height and sex. This calculator compares four well-known formulas (Devine, Robinson, Miller and Hamwi) so you can see the range they suggest rather than relying on a single number.
How to use the Ideal Weight Calculator
- Select Male or Female.
- Enter your Stature (cm).
- Press the calculate button to see the result from each formula side by side.
Formula and method
The formulas were originally written for inches above 5 feet (60 inches). For example, the Robinson formula gives 52 kg + 1.9 kg per inch over 5 ft for men and 49 kg + 1.7 kg per inch over 5 ft for women. Devine, Miller and Hamwi use different base weights and increments per inch.
Worked example
A man who is 180 cm (about 70.9 inches) is 10.9 inches over 5 ft. The Robinson formula gives 52 + 1.9 × 10.9 ≈ 72.7 kg. The other formulas give slightly different values, which is why a range is more useful than one figure.
Tips
- Ideal body weight formulas ignore muscle mass, bone structure and age.
- Treat the numbers as a reference range. BMI and body fat percentage give a fuller picture.
- The formulas are also used by clinicians to estimate medication doses, but doctors adjust them for the individual.