Ideal Weight Calculator
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Results (Ideal Body Weight)
| Formula | Weight (kg) | Weight (lbs) |
|---|---|---|
| Devine Formula (1974) | — | — |
| Robinson Formula (1983) | — | — |
| Miller Formula (1983) | — | — |
| Hamwi Formula (1964) | — | — |
How Ideal Weight is Estimated
Ideal Body Weight (IBW) formulas were originally developed to determine dosages for medications. Today, they are commonly referenced in clinical, nutritional, and fitness applications as general guides.
The 4 Classic Formulas
All four formulas use 5 feet (60 inches) of height as a baseline and add or subtract weight per inch above or below that height. Let $h$ represent total height in inches:
- **Devine (1974):**
- Men: $50.0\text{ kg} + 2.3\text{ kg} \times (h - 60)$
- Women: $45.5\text{ kg} + 2.3\text{ kg} \times (h - 60)$
- **Robinson (1983):**
- Men: $52.0\text{ kg} + 1.9\text{ kg} \times (h - 60)$
- Women: $49.0\text{ kg} + 1.7\text{ kg} \times (h - 60)$
- **Miller (1983):**
- Men: $56.2\text{ kg} + 1.41\text{ kg} \times (h - 60)$
- Women: $53.1\text{ kg} + 1.36\text{ kg} \times (h - 60)$
- **Hamwi (1964):**
- Men: $48.0\text{ kg} + 2.7\text{ kg} \times (h - 60)$
- Women: $45.5\text{ kg} + 2.2\text{ kg} \times (h - 60)$
Disclaimer. Ideal Body Weight formulas represent statistical guidelines and do not define an absolute personal health goal. They do not account for muscle mass, bone density, or individual body composition.