Ideal Weight Calculator
Calculate your ideal body weight using Devine, Robinson, Miller, and Hamwi formulas based on height and gender.
ft
in
Devine Formula
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Robinson Formula —
Miller Formula —
Hamwi Formula —
Healthy BMI Range —
How to Use This Calculator
Select your gender and enter your height. The calculator shows results from four established medical formulas plus your healthy BMI weight range.
Formula
Devine (male): 50 + 2.3 × (height in inches - 60) kg
Devine (female): 45.5 + 2.3 × (height in inches - 60) kg
Robinson, Miller, and Hamwi use similar baseline formulas with different coefficients.
Devine (female): 45.5 + 2.3 × (height in inches - 60) kg
Robinson, Miller, and Hamwi use similar baseline formulas with different coefficients.
Example
Example: A 5'10" male: Devine = 73 kg (161 lbs), Robinson = 71 kg (157 lbs), Healthy BMI range = 129-174 lbs.
Frequently Asked Questions
- The Devine formula is most commonly used in medical settings. However, all formulas are estimates. A healthy BMI range (18.5-24.9) provides a more flexible and individualized target.
- Each formula was developed using different study populations and methodologies. The range between them gives you a reasonable target zone rather than a single number.
- Yes. People with larger bone structures naturally weigh more. The formulas provide averages for medium frames. Add/subtract ~10% for large/small frames.
- Not exactly. Ideal weight formulas are simplified estimates. Your healthy weight depends on many factors including muscle mass, body composition, age, and overall health markers.