Ideal Weight Calculator
Find your healthy weight range based on height, age, gender, and body frame. Compare different methods and track progress towards goals.
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About Ideal Weight Calculator
Understanding Ideal Body Weight
The concept of ideal body weight (IBW) emerged in the early 20th century from insurance companies' mortality data. Dr. Paul Robinson developed his formula in 1983, building upon earlier work by Broca (1871) and Devine (1974), to create a more accurate height-based weight estimation method.
Mathematical Foundation
Male IBW = 52 kg + 1.9 kg per inch over 5 feet
Female IBW = 49 kg + 1.7 kg per inch over 5 feet
Range = IBW ± 10%
Female IBW = 49 kg + 1.7 kg per inch over 5 feet
Range = IBW ± 10%
- Height conversion: 1 foot = 30.48 cm
- Weight range accounts for frame size
- Based on height above 5 feet (152.4 cm)
- Adjustments for body composition
Historical Development
Early Methods
- Broca Index (1871)
- Metropolitan Life Tables (1943)
- Devine Formula (1974)
- Robinson Formula (1983)
Modern Adaptations
- BMI incorporation
- Body composition analysis
- Population-specific adjustments
- Health risk correlations
Clinical Applications
Medical Dosing
- Drug calculations
- Anesthesia planning
- Nutrition requirements
- Fluid management
Health Assessment
- Weight management
- Surgical planning
- Risk stratification
- Treatment monitoring
Body Frame Considerations
Frame Size Factors
- Wrist circumference
- Elbow breadth
- Shoulder width
- Skeletal structure
Adjustments
- Small frame: -10%
- Medium frame: baseline
- Large frame: +10%
- Gender differences
Health Implications
Weight-Related Risks
- Cardiovascular disease
- Metabolic disorders
- Joint stress
- Respiratory function
Lifestyle Factors
- Physical activity
- Dietary habits
- Sleep patterns
- Stress management
Special Populations
Age Groups
- Children (growth charts)
- Adolescents
- Adults
- Elderly
Special Conditions
- Athletes
- Pregnancy
- Medical conditions
- Disabilities
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