Ideal Weight Calculator
The Ideal Weight Calculator computes ideal body weight (IBW) ranges based on height, gender, and age, using several popular formulas for side-by-side comparison. It also provides the healthy BMI range for your height.
About Ideal Weight
Ideal body weight (IBW) is an estimate of a healthy weight based on height, gender, and age. Several formulas exist, each with a different approach. IBW is used in medicine for drug dosage and in sports for classification, but it does not account for body composition (muscle vs. fat).
Popular IBW Formulas
- Hamwi (1964):
Male: 48.0 kg + 2.7 kg per inch over 5 ft
Female: 45.5 kg + 2.2 kg per inch over 5 ft - Devine (1974):
Male: 50.0 kg + 2.3 kg per inch over 5 ft
Female: 45.5 kg + 2.3 kg per inch over 5 ft - Robinson (1983):
Male: 52 kg + 1.9 kg per inch over 5 ft
Female: 49 kg + 1.7 kg per inch over 5 ft - Miller (1983):
Male: 56.2 kg + 1.41 kg per inch over 5 ft
Female: 53.1 kg + 1.36 kg per inch over 5 ft - Healthy BMI Range: BMI 18.5 - 25 for adults
Limitations
- Does not consider body composition (muscle/fat ratio)
- Not suitable for children under 18 (use BMI-for-age charts)
- Should be used as a guideline, not a strict target