Ideal Weight Calculator
Discover your healthy weight range instantly
Ideal Weight Calculator
Based on your results, you might benefit from Generic Scale — Smart Scale
Check PriceYour 'ideal' weight is a range, not a single number. This calculator uses four different medical formulas plus the standard BMI range to give you a complete picture of where your healthy weight lies.
How to Use This Ideal Weight Calculator
- 1Select your gender.
- 2Enter your height in feet and inches.
- 3Click Calculate to see results from all major formulas.
Understanding Your Results
You will see a specific 'ideal' weight from each formula (Devine, Robinson, etc.) and a broad healthy range based on BMI (18.5-25). Most people feel best somewhere within that range.
Frequently Asked Questions
There is no single 'perfect' formula. The Devine Formula (1974) is the most widely used medically for drug dosing, while the Robinson (1983) and Miller (1983) formulas were developed later to improve accuracy. Our calculator provides an average of all major formulas plus the BMI range to give you a comprehensive view.
Yes. Most standard formulas (Devine, Robinson) assume a medium frame. If you have a large frame (broad shoulders, thick wrists), your ideal weight could be 10% higher. Conversely, a small frame might mean your ideal weight is 10% lower.
The BMI healthy range (18.5-24.9) spans about 30-40 pounds for an average height person. This wide range accounts for natural variations in body composition, muscle mass, and bone density. You can be healthy at both the lower and higher ends of this spectrum.
Strictly speaking, the medical formulas do not include age. However, research suggests that carrying a little extra weight as you age (BMI 25-27) may actually be protective and associated with longevity compared to being very lean in later years.
Formulas like Hamwi (1964) were based on data from thinner populations decades ago. Modern aesthetic standards often favor a slightly more muscular or curvy build, which weighs more. If you lift weights, you will likely be heavier than these 'ideal' formulas suggest.
Absolutely. 'Ideal weight' is a statistical average, not a health mandate. If you are active, have good blood markers (cholesterol, blood pressure), and feel good, being above the formula's number is perfectly fine, especially if that weight is muscle.
Based on the Robinson formula, the ideal weight is approx. 124 lbs (56 kg). The healthy BMI range (18.5-25) calculates to 108-145 lbs. Most women feel best somewhere within that BMI range depending on their muscle mass.
The Devine formula is the standard for medical calculations (like medication dosing) but can underestimate weight for short women. The Robinson formula is often considered slightly more accurate for modern populations, but the differences are usually small (2-4 lbs).
Always aim for the **range** (BMI 18.5-25). The single 'ideal weight' number is just a data point. Trying to hit an exact number can lead to unhealthy obsession. Your weight naturally fluctuates by 2-5 lbs daily due to water retention.
No. These formulas are strictly for adults (18+). Children and teenagers are still growing, and their weight status is evaluated using BMI percentiles for age and gender growth charts.