Ideal Weight Calculator
Calculate your ideal weight using multiple scientific formulas
Ideal Weight Calculator
Enter your measurements to calculate ideal weight
Measure around your wrist bone to determine frame size
Ideal Weight Results
Your ideal weight calculations
About Ideal Weight Calculations
Weight Formulas
- • Robinson Formula: Based on height and gender (1983)
- • Miller Formula: Alternative height-based calculation (1983)
- • Devine Formula: Medical dosing weight calculation (1974)
- • Hamwi Formula: Simple height-based formula (1964)
Frame Size Guidelines
- • Small Frame: Wrist circumference less than 6.5" (men) / 6" (women)
- • Medium Frame: Wrist circumference 6.5-7.5" (men) / 6-6.5" (women)
- • Large Frame: Wrist circumference greater than 7.5" (men) / 6.5" (women)
Important Notes
- • These are estimates and should be used as guidelines only
- • Individual factors like muscle mass and body composition matter
- • Consult healthcare professionals for personalized advice
- • Focus on overall health rather than just weight
Frequently Asked Questions
How is ideal body weight calculated?▾
Classic formulas (Devine, Hamwi, Robinson, Miller) estimate ideal weight from your height and sex, typically assuming a medium frame. Each produces slightly different results.
Does frame size affect ideal weight?▾
Yes. People with larger bone structure tend to weigh more at the same height. A common adjustment is subtracting 10% for small frames and adding 10% for large frames.
Is ideal weight the same as healthy weight?▾
Not exactly. Ideal weight formulas give a single target, while healthy weight is a range (often defined by BMI 18.5–24.9) that accounts for body composition and individual variation.
Why do different formulas give different answers?▾
The formulas were created from different populations and clinical goals. Use the range they produce as a guideline rather than fixating on a single number.