Ideal Weight Calculator
Find your ideal body weight using multiple scientifically validated formulas. Get personalized results based on your height, gender, and body frame size.
Wrist circumference 6-6.25" (women) or 6.5-7.5" (men)
Most commonly used in clinical settings
Your Ideal Weight
157 lbs
Using Robinson (1983)
141 lbs
Lower Range
157 lbs
Ideal
172 lbs
Upper Range
All Formula Results
About Ideal Weight Formulas
Different formulas may give slightly different results. The Robinson formula is most commonly used in clinical settings, while Devine is often used for medication dosing. Your actual ideal weight depends on factors like muscle mass and body composition.
Understanding Ideal Weight
Ideal body weight (IBW) formulas were developed to estimate a healthy weight based on height and gender. Use our BMI calculator to complement this assessment with another widely-used metric.
While IBW provides a useful reference point, your actual healthy weight depends on many factors including body fat percentage, muscle mass, and overall health. Calculate your TDEE to understand how many calories you need to maintain, lose, or gain weight.
Robinson (1983)
Most commonly used in clinical settings. Provides moderate estimates suitable for most people.
Miller (1983)
More conservative estimate. Better suited for individuals with smaller body frames.
Devine (1974)
Original IBW formula. Still used for medication dosing and anesthesia calculations.
Hamwi (1964)
Popular in general fitness. Tends to give slightly higher estimates than other formulas.
How to Determine Your Body Frame
Wrap your thumb and middle finger around your wrist (dominant hand) at the narrowest point:
Small Frame
Thumb and finger overlap. Wrist under 6" (women) or 6.5" (men).
Medium Frame
Thumb and finger just touch. Wrist 6-6.25" (women) or 6.5-7.5" (men).
Large Frame
Thumb and finger don't touch. Wrist over 6.25" (women) or 7.5" (men).
Frequently Asked Questions
What is ideal body weight?
Ideal body weight (IBW) is an estimated weight range considered healthy for a given height, gender, and body frame. It's calculated using formulas developed by researchers and provides a reference point for healthy weight goals.
Which ideal weight formula is most accurate?
The Robinson formula is most commonly used in clinical settings. However, comparing multiple formulas gives you a better range. Use our body fat calculator for a more complete picture of body composition.
Is Ideal Weight calculator accurate?
Yes, our Ideal Weight calculator is accurate. It uses scientifically validated formulas (Robinson, Miller, Devine, Hamwi) and allows adjustment for body frame size. Our in-house team of nutritionists and developers verify all calculations for accuracy.
Related Calculators
Learn more about ideal body weight research from Wikipedia.