Discover your healthy weight range using 4 scientific formulas — not just one number, but the full picture.
Why there's no single "perfect" number.
All formulas start with a base weight at 5 feet tall, then add weight for each additional inch:
| Formula | Men | Women |
|---|---|---|
| Devine (1974) | 50 kg + 2.3 kg/inch | 45.5 kg + 2.3 kg/inch |
| Robinson (1983) | 52 kg + 1.9 kg/inch | 49 kg + 1.7 kg/inch |
| Miller (1983) | 56.2 kg + 1.41 kg/inch | 53.1 kg + 1.36 kg/inch |
| Hamwi (1964) | 48 kg + 2.7 kg/inch | 45.5 kg + 2.2 kg/inch |
Single-number formulas can't account for your frame size, muscle mass, or body composition. That's why health organizations recommend a range instead:
Quick answers to common questions.
Ideal weight depends on your height and gender. Popular formulas like Devine, Robinson, Miller, and Hamwi give slightly different estimates, which is why a healthy range (based on BMI 18.5–24.9) is often more useful than a single number.
No single formula is perfect for everyone. The Devine formula is the most widely used in medicine, but all formulas are estimates. The healthy BMI range is generally the best guide for most people.
Each formula was developed using different populations and methods. That's why we show all four plus an average — your true ideal weight likely falls somewhere within that cluster.
No. These formulas are based on height and gender only. Muscular people may healthily weigh more than the 'ideal' number. Body fat percentage is a better measure for athletes.
No. All calculations run entirely in your browser. Your height and results are never stored or sent anywhere.
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