Ideal weight vs healthy weight: why they are not the same
Learn why a healthy-weight range is generally more meaningful than a single ideal-weight formula.
“Ideal weight” often suggests that one exact number is right for every person of a given height. In reality, common ideal-weight equations were designed as rough references and do not capture body composition, age, ethnicity, health or personal history.
A healthy-weight range is more honest about that variation. For most adults, one common reference is the weight interval corresponding to BMI 18.5–24.9:
Weight = BMI x height (m)^2
At 1.65 m, that interval is approximately 50.4–67.8 kg. It is a broad screening range, not a promise that every point is suitable or that values outside it are automatically unhealthy.
Muscle mass, waist measurement, blood pressure, laboratory markers, fitness and a sustainable lifestyle may be more informative than chasing a formula’s central number. A stable weight that supports health and function is often a better goal than an arbitrary “ideal.”
Use the BMI calculator to see a reference range for your height, then interpret it in your own context.