Advanced Health Calculator
Ideal Weight Calculator
Calculate your ideal body weight range based on scientific formulas used by health professionals.
Your Ideal Weight Results
Ideal Weight According To Different Formulas:
Hamwi Formula (1964)
Developed for medicinal dosage purposes
Devine Formula (1974)
Most widely used in medical settings
Robinson Formula (1983)
Modification of Devine formula
Miller Formula (1983)
Most recent modification
Understanding Your Ideal Weight
Ideal body weight (IBW) is an estimate of what your weight should be based on your height, gender, and sometimes frame size. These calculations are based on formulas developed by medical researchers and are used as guidelines rather than absolute targets.
About the Formulas
All formulas have the same basic format: a base weight for 5 feet of height, with added weight per additional inch. The formulas differ in the values used based on the research behind them:
- Hamwi (1964): Original formula developed for drug dosage calculations
- Devine (1974): Became the standard in medical settings
- Robinson (1983): Modified version of Devine formula
- Miller (1983): Most recent modification with different base weights
Factors Affecting Ideal Weight
- Body Composition: Muscle weighs more than fat, so athletes may weigh more
- Frame Size: Larger frames can support more weight naturally
- Age: Metabolism changes with age, affecting weight distribution
- Health Conditions: Some conditions affect weight recommendations
BMI Classification
| BMI Range | Category | Health Risk |
|---|---|---|
| Below 18.5 | Underweight | High (nutritional deficiency risk) |
| 18.5 - 24.9 | Normal weight | Low (healthy range) |
| 25.0 - 29.9 | Overweight | Moderate (increased risk) |
| 30.0 - 34.9 | Obese Class I | High |
| 35.0 - 39.9 | Obese Class II | Very High |
| 40.0 and above | Obese Class III | Extremely High |
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