Calculate your ideal body weight based on height using multiple scientifically-validated formulas. Compare results from Robinson, Miller, Devine, Hamwi, and BMI-based methods to find your healthy weight range.
Your Ideal Weight Range
Based on your height, sex, and frame size
Comparison Across Formulas
Understanding Ideal Body Weight
Ideal body weight (IBW) is an estimate of the optimal weight for health and longevity based on your height. Different medical formulas have been developed over the years, each with its own methodology and considerations.
Formulas Used
Robinson Formula (1983): Modern formula widely used in medical settings
Miller Formula (1983): Alternative formula providing similar results to Robinson
Devine Formula (1974): Commonly used for medication dosing calculations
Hamwi Formula (1964): Simple formula often used in clinical nutrition
BMI-Based Method: Calculates weight for a healthy BMI range (18.5-24.9)
How Frame Size Affects Results
Frame size adjustments account for bone structure differences:
Small Frame: -10% adjustment to base calculation
Medium Frame: Standard calculation with no adjustment
Large Frame: +10% adjustment to base calculation
Important Considerations
IBW formulas are estimates and don't account for muscle mass, body composition, or individual health factors
Athletes and highly muscular individuals may have healthy weights above calculated IBW
Age, ethnicity, and medical conditions can affect ideal weight ranges
These calculations are designed for adults and are not appropriate for children or adolescents
Consult healthcare professionals for personalized weight recommendations
Medical Disclaimer: This calculator is for informational purposes only and does not constitute medical advice. Always consult with qualified healthcare professionals for personalized health assessments and weight management guidance.