ZovaTool

Healthy Weight Calculator

Healthy BMI Range (WHO)
58.6 – 78.9 kg
129.2 – 173.9 lb
Robinson (1983)
71.1 kg
Miller (1983)
70.4 kg
Devine (1974)
73.2 kg
Hamwi (1964)
75.2 kg
Age-adjusted ideal
70.0 kg
Ponderal Index
13.3
You are 6.2 kg above the healthy midpoint.

How to use the Healthy Weight Calculator

  1. Enter sex, age, height and current weight.
  2. Read the WHO healthy BMI range (18.5–24.9).
  3. Compare Robinson, Miller, Devine and Hamwi ideal weights.
  4. Check distance from the midpoint and the age-adjusted target.
Advertisement

There is no single 'ideal' weight

Robinson (1983) and Miller (1983) are modern standards based on actuarial data. Devine (1974) is still used in drug dosing. Hamwi (1964) remains a classic clinical rule of thumb.

Newer research suggests slightly higher BMIs (22–27) are protective in adults over 65 — our age-adjusted figure accounts for this.

Frame size, muscle mass, ethnicity and fat distribution all matter. Treat the range as a guide, not a target.