Your ideal weight is a range that promotes optimal health and reduces disease risk. This calculator uses the scientifically-validated Devine formula to estimate your healthy weight based on height and gender factors.
The Devine formula was developed in 1974 by Dr. B.J. Devine for medical dosing purposes. It estimates ideal weight based on the assumption that:
While simple, this formula remains clinically relevant for estimating healthy weight ranges.
Ideal weight calculations provide estimates, not absolute rules. Important factors they don't account for:
A muscular athlete might healthily exceed their "ideal" weight, while someone with high body fat might need to be below it.
| Height (cm) | Women (kg) | Men (kg) |
|---|---|---|
| 150 | 41.5-56.0 | 45.5-61.5 |
| 160 | 47.5-63.5 | 52.0-70.0 |
| 170 | 53.5-71.5 | 58.5-78.5 |
| 180 | 59.5-79.5 | 65.0-87.0 |
| 190 | 65.5-87.5 | 71.5-95.5 |
Ranges account for ±10% of ideal weight to accommodate different body types
A more accurate health predictor than weight alone. Risk increases with waist size over:
Healthy body fat percentages vary by age and gender:
Blood pressure, cholesterol, and blood sugar levels often matter more than weight alone. Many "overweight" individuals are metabolically healthy, while some "normal weight" people have metabolic issues.
Aim for 0.5-1kg (1-2lb) per week through:
For underweight individuals, aim for:
Focus on:
| Region | Average BMI | Healthy Weight Perception |
|---|---|---|
| North America | 28.8 (overweight) | Cultural preference for muscular physiques |
| Europe | 26.5 (upper normal) | Emphasis on fitness over thinness |
| East Asia | 23.4 (normal) | Lower BMI ideals (often <23) |
| Pacific Islands | 32.1 (obese) | Cultural appreciation for larger bodies |
Data from WHO Global Health Observatory (2023)
Sudden gain/loss without diet/exercise changes may indicate hormonal issues or other medical conditions.
BMI <18.5 or >30 warrants medical evaluation to assess health risks and potential causes.
Fatigue, joint pain, or breathing difficulties at your current weight may signal health issues.
Create personalized nutrition plans based on your health status, preferences, and goals.
Design safe, effective workout programs tailored to your abilities and objectives.
Address emotional eating, body image concerns, or eating disorders when present.
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