Ideal Weight Calculator
See commonly used reference weight estimates for your height -- from four well-known formulas and the standard BMI range -- in metric or imperial units. There is no single ideal weight, so you get a range, not a target.
Your Details
Health note: These are reference estimates from commonly used formulas, not medically recommended target weights. A healthy weight depends on your body composition, health and lifestyle -- a qualified healthcare professional can advise what is right for you.
Results
Range across commonly used formulas
Weight range for a BMI of 18.5–24.9 at your height:
Your height is below 5 ft (152.4 cm). These formulas were designed for taller heights, so their estimates are less reliable here -- the BMI-based range is usually the more useful reference.
Reference estimates by formula
Devine, Robinson, Miller and Hamwi each add a fixed weight per inch of height above 5 ft. They give different answers because they were derived from different data and purposes.
How this calculator works
Choose your units, enter your height and select the sex used by the formulas. Each formula starts from a base weight at 5 feet and adds a set amount per extra inch: Devine (men 50 kg + 2.3 kg/inch, women 45.5 kg + 2.3 kg/inch), Robinson (men 52 + 1.9, women 49 + 1.7), Miller (men 56.2 + 1.41, women 53.1 + 1.36) and Hamwi (men 48 + 2.7, women 45.5 + 2.2). The BMI-based range is 18.5 × height² to 24.9 × height² (height in metres). Results are shown as a range of reference estimates because none of these methods defines an individual ideal weight.
Is there one ideal weight for my height?
No. There is no single, medically universal “ideal” weight. The formulas here were developed decades ago -- mostly to estimate medication doses -- and give different answers. A healthy weight for you depends on your body composition, frame, age, health and lifestyle, which is why this tool shows a range of reference estimates rather than one number.
Which formulas are used?
Devine (1974), Robinson (1983), Miller (1983) and Hamwi (1964). Each starts from a base weight at 5 feet (152.4 cm) and adds a fixed amount for every inch above that, with different values for men and women. The tool also shows the weight range that corresponds to a BMI of 18.5 to 24.9 at your height.
Is my data stored?
No. Your height is used only in your browser. Nothing is sent to our servers, stored or included in analytics.
What if I am shorter than 5 feet?
The formulas were designed for heights of 5 feet (152.4 cm) and above. For shorter heights the tool extrapolates, and the results are less reliable -- the BMI-based range is usually the more sensible reference.
Disclaimer: This calculator is for general information only and is not medical advice, diagnosis or treatment. It is intended for adults. See our Disclaimer and Terms of Use for more detail.