🎯 Fitness Tool
Ideal Weight Calculator
Find your ideal body weight using four medically validated formulas — Hamwi, Devine, Robinson, and Miller — based on your height and gender.
Ideal Weight Calculator
Recommended Weight Range
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Hamwi
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Devine
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Robinson
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Miller
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Ideal Weight Formulas Explained
Different medical formulas estimate ideal body weight based on height. Each was developed for specific clinical purposes. The average of these formulas gives a good target range.
Hamwi Formula:
Men: 48.0 kg + 2.7 kg per inch over 5 feet
Women: 45.5 kg + 2.2 kg per inch over 5 feet
Devine Formula:
Men: 50.0 kg + 2.3 kg per inch over 5 feet
Women: 45.5 kg + 2.3 kg per inch over 5 feet
Robinson Formula:
Men: 52.0 kg + 1.9 kg per inch over 5 feet
Women: 49.0 kg + 1.7 kg per inch over 5 feet
Miller Formula:
Men: 56.2 kg + 1.41 kg per inch over 5 feet
Women: 53.1 kg + 1.36 kg per inch over 5 feet
Men: 48.0 kg + 2.7 kg per inch over 5 feet
Women: 45.5 kg + 2.2 kg per inch over 5 feet
Devine Formula:
Men: 50.0 kg + 2.3 kg per inch over 5 feet
Women: 45.5 kg + 2.3 kg per inch over 5 feet
Robinson Formula:
Men: 52.0 kg + 1.9 kg per inch over 5 feet
Women: 49.0 kg + 1.7 kg per inch over 5 feet
Miller Formula:
Men: 56.2 kg + 1.41 kg per inch over 5 feet
Women: 53.1 kg + 1.36 kg per inch over 5 feet
Frequently Asked Questions
Which ideal weight formula is most accurate?
No single formula is universally "best." The Devine formula is most commonly used in clinical settings for drug dosing calculations. The average of all four formulas provides a reasonable target range for most adults.
Is ideal weight the same as healthy weight?
Ideal weight formulas provide a target based on height, but healthy weight considers many factors including body composition, muscle mass, bone density, and overall health markers. A BMI of 18.5–24.9 is a broader healthy weight range.
Do ideal weight formulas apply to everyone?
These formulas were originally developed for adults of average build. They may underestimate ideal weight for athletes (higher muscle mass) and overestimate for elderly individuals. Use these as guidelines, not absolute targets.