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Calculate your ideal body weight using four established formulas: Robinson, Miller, Devine, and Hamwi, based on your height and sex.
Ideal Weight Formulas (inches over 5ft):
Robinson (1983): Men = 52 + 1.9 lb/inch over 5ft
Devine (1974): Men = 50 + 2.3 lb/inch over 5ft
Miller (1983): Men = 56.2 + 1.41 lb/inch over 5ft
Hamwi (1964): Men = 48 + 2.7 lb/inch over 5ft
Women formulas use different base values and increments.
Ideal body weight (IBW) is a target weight range associated with optimal health outcomes for a person of a given height and sex. It is used clinically for drug dosing and nutritional assessments.
No single formula is definitively best. The Devine formula is most commonly used in clinical settings, especially for drug dosing. The Robinson formula gives more moderate values. Using the average of multiple formulas is reasonable.
Not necessarily. Ideal weight formulas were developed for clinical use. A healthy BMI range (18.5-24.9) is often a more practical target for general wellness.
Being above your ideal weight range does not automatically mean poor health. Body composition, muscle mass, and other factors matter. Consult a healthcare provider before making significant changes.
No. Traditional ideal weight formulas were developed before body composition analysis became widespread. Athletes and muscular individuals may weigh more than the formula suggests while still being healthy.
These formulas were developed primarily on Western populations and may not be optimal for all ethnicities. Asian populations may have higher health risks at lower BMI values, warranting different reference ranges.