Healthy Weight Calculator
Calculate your ideal weight range using multiple medical formulas and BMI standards
The Healthy Weight Calculator determines your ideal weight range based on your height, age, gender, and body frame. It uses multiple established medical formulas including BMI ranges, Devine, Robinson, Miller, and Hamwi methods to provide a comprehensive assessment. Understanding your healthy weight range is essential for setting realistic fitness goals and maintaining optimal health.
Weight Range Calculation
Measure your wrist circumference to determine frame size
Healthy Weight Results
Formula-Based Ideal Weights
BMI Weight Categories
Frame Size Adjustments
Recommendations
How to Use
1. Select your gender and enter your age
2. Input your height in feet and inches
3. Optionally enter your current weight
4. Choose your body frame size
5. Select your activity level
6. Click "Calculate" to see your healthy weight range
7. Review the different formula results
8. Use the recommendations for goal setting
Weight Formulas
Devine Formula:
Most commonly used. Men: 50kg + 2.3kg per inch over 5'. Women: 45.5kg + 2.3kg per inch over 5'.
Robinson Formula:
Men: 52kg + 1.9kg per inch over 5'. Women: 49kg + 1.7kg per inch over 5'.
Miller Formula:
Men: 56.2kg + 1.41kg per inch over 5'. Women: 53.1kg + 1.36kg per inch over 5'.
Hamwi Formula:
Men: 48kg + 2.7kg per inch over 5'. Women: 45.5kg + 2.2kg per inch over 5'.
Body Frame Size
How to Measure:
Wrap a measuring tape around your wrist at the narrowest point, just below the wrist bone.
Men:
• Small: <6.25 inches
• Medium: 6.25-7.5 inches
• Large: >7.5 inches
Women:
• Small: <5.75 inches
• Medium: 5.75-6.25 inches
• Large: >6.25 inches
BMI Categories
Standard BMI Ranges:
• Underweight: <18.5
• Normal: 18.5-24.9
• Overweight: 25-29.9
• Obese Class I: 30-34.9
• Obese Class II: 35-39.9
• Obese Class III: ≥40
Limitations:
BMI doesn't account for muscle mass, bone density, or body composition. Athletes may have high BMI due to muscle mass.
Healthy Weight Tips
Gradual Changes:
Aim for 1-2 pounds per week weight loss or gain for sustainable results.
Balanced Diet:
Focus on whole foods, adequate protein, and proper portion sizes.
Regular Exercise:
Combine cardiovascular exercise with strength training for optimal health.
Professional Guidance:
Consult healthcare providers for personalized weight management plans.
Frequently Asked Questions
Which formula is most accurate?
The Devine formula is most commonly used in medical settings, but all formulas provide reasonable estimates. Consider your body frame and composition.
Should I aim for the middle of the range?
Not necessarily. Your ideal weight depends on body composition, muscle mass, and personal health factors. The range provides flexibility.
How often should I check my weight?
Weekly weigh-ins are sufficient for most people. Daily fluctuations are normal due to water retention and other factors.