Ideal Weight Calculator
Find your ideal body weight based on height and gender using 4 medical formulas - Hamwi, Devine, Robinson, and Miller.
Healthy Weight Range (BMI 18.5–24.9)
53.5 – 72 kg
Average Across All Formulas
66 kg
Ideal Weight by Formula
| Formula | Ideal Weight | Commonly Used For |
|---|---|---|
| Hamwi | 66.7 kg | Clinical nutrition |
| Devine | 65.9 kg | Medication dosing |
| Robinson | 65.2 kg | General health |
| Miller | 66 kg | Body composition |
Ideal weight formulas were developed for medical use (drug dosing, clinical nutrition) and don't account for muscle mass or body composition. The BMI 18.5–24.9 range is a better general guide.
About the Ideal Weight Calculator
Ideal weight is not a single number but a range based on your height, gender, and body frame. Four medically-derived formulas (Hamwi, Devine, Robinson, and Miller) each give slightly different estimates, reflecting the difficulty of defining a single ideal for a diverse population. Combined with the healthy BMI weight range (18.5-22.9 for Indians), these provide a realistic target zone rather than a single arbitrary number.
Ideal Weight Formulas (height in cm, H = cm above 152)
Hamwi: Men = 48 + 1.06×H, Women = 45.4 + 0.9×H · Devine: Men = 50 + 0.9×H, Women = 45.5 + 0.9×H
H = height above 152 cm in cm · Robinson: Men = 52 + 0.75×H, Women = 49 + 0.67×H · Miller: Men = 56.2 + 0.56×H, Women = 53.1 + 0.54×H · All formulas calibrated for heights above 152cm
Worked Example
Female, 163 cm (H = 11 cm above 152)
Hamwi: 55.3 kg · Devine: 55.4 kg · Robinson: 56.4 kg · Miller: 59.0 kg · Healthy BMI range (18.5-22.9): 49-61 kg
Tips & Insights
- 1
The formula-based ideal weights work best for people of average build - athletes and those with large frames can safely weigh more.
- 2
For Indians, staying in the lower half of the healthy BMI range (18.5-20.9) is associated with lower metabolic disease risk.
- 3
Focus on body fat percentage and waist circumference alongside weight - these predict health risk better than scale weight alone.
- 4
Losing just 5-10% of body weight reduces blood pressure, blood sugar, and cholesterol significantly, regardless of reaching 'ideal' weight.
- 5
Children and teenagers should use age-specific growth charts, not adult ideal weight formulas.
Why this matters for you
The concept of ideal weight is useful as a goal-setting tool, but health is not a single number. Research shows that metabolic fitness (cardiorespiratory fitness, muscle strength, blood markers) predicts longevity better than reaching any specific weight target. Use these formulas as a reasonable starting point and work with a doctor to set realistic, personalized goals.
Related Calculators
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TDEE
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