Ideal Weight Calculator
Calculate your ideal body weight using four well-known formulas — Robinson, Miller, Devine, and Hamwi — based on your height and gender.
Average Ideal Weight
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Robinson (1983)
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Miller (1983)
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Devine (1974)
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Hamwi (1964)
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How to Use the Ideal Weight Calculator
- Select your gender: Formulas differ for men and women.
- Choose your unit system: Select Metric (cm) or Imperial (ft/in).
- Enter your height: Type your height accurately.
- View your results: Four ideal weight estimates and their average appear instantly.
Ideal Weight Formulas
All formulas calculate ideal weight in kg based on height above 5 feet (152.4 cm). Let h = inches above 60 (5 feet).
| Formula | Men | Women |
|---|---|---|
| Robinson (1983) | 52 + 1.9 x h | 49 + 1.7 x h |
| Miller (1983) | 56.2 + 1.41 x h | 53.1 + 1.36 x h |
| Devine (1974) | 50 + 2.3 x h | 45.5 + 2.3 x h |
| Hamwi (1964) | 48 + 2.7 x h | 45.5 + 2.2 x h |
Results are in kilograms. h = number of inches over 5 feet.
Frequently Asked Questions
Which formula is the most accurate?
No single formula is definitively "best." The Robinson formula is often considered the most balanced. Looking at the average of all four formulas gives you a reasonable range. These formulas are guidelines, not medical advice.
Do these formulas account for body type?
No. These formulas are based solely on height and gender. They do not account for muscle mass, frame size, or body composition. Athletes or very muscular individuals may weigh more than the ideal weight without being overweight.
What if I am shorter than 5 feet?
These formulas were designed for adults 5 feet and taller. For heights below 5 feet, the results may be less accurate. Consider using BMI as a complementary measure for shorter individuals.