Ideal Weight Calculator
Find your ideal weight range based on height and sex using multiple established formulas — BMI range, Devine, and Hamwi methods.
Part of our Health Calculators collection.
Ideal Weight Calculator
Free online calculator
Results update automatically as you type
How to Use This Calculator
- 1
Enter height and sex.
- 2
See healthy weight range from multiple methods.
Ideal Weight Formulas
BMI Range (18.5–24.9): Weight = BMI × Height(m)² Devine Formula: Male: 50 kg + 2.3 kg per inch over 5' Female: 45.5 kg + 2.3 kg per inch over 5' Hamwi Formula: Male: 106 lbs + 6 lbs per inch over 5' Female: 100 lbs + 5 lbs per inch over 5'
Example Calculation
Example: 5'9" male
Inputs
heightFt: 5heightIn: 9sex: male
Result
Healthy range: 128–172 lbs
BMI 18.5–24.9 at 5'9" = 125–168 lbs. Devine: 153 lbs.
Frequently Asked Questions
Which formula is most accurate?
The BMI range gives a broader healthy window. Devine and Hamwi give a single target number. None account for muscle mass — a muscular athlete at 190 lbs may be healthier than someone at 155 lbs with high body fat.
Is ideal weight the same as goal weight?
Ideal weight is a statistical estimate. Your personal goal weight should factor in how you feel, your energy levels, and body composition — not just a number on a scale.