Ideal Weight Calculator
Calculate your ideal weight using multiple scientific formulas. Get personalized recommendations with Robinson, Miller, Devine, and Hamwi formulas.
Professional-grade ideal weight calculator with healthy weight range recommendations.
Ideal Weight Calculator
Calculate your ideal weight using multiple formulas
Understanding Ideal Weight
What is Ideal Weight?
Ideal weight is the weight that is considered optimal for your height, gender, and body frame. It's often used as a reference point for health and fitness goals, providing a target range for weight management.
Unlike BMI, which is a screening tool, ideal weight formulas are specifically designed to provide target weights based on height and gender. However, they don't account for individual factors like muscle mass, bone density, or body composition.
Note: Ideal weight formulas are based on population averages and should be used as guidelines rather than absolute targets.
Formulas Used
Robinson Formula (1983)
Developed by Dr. Robinson, this formula is widely used in clinical settings and provides gender-specific calculations.
Women: 49 + (1.7 × (height in inches - 60))
Miller Formula (1983)
Similar to Robinson but with slightly different coefficients, providing alternative calculations.
Women: 53.1 + (1.36 × (height in inches - 60))
Devine Formula (1974)
One of the earliest formulas, commonly used in medical practice and pharmaceutical calculations.
Women: 45.5 + (2.3 × (height in inches - 60))
Hamwi Formula (1964)
The oldest formula, still referenced in medical literature and clinical practice.
Women: 45.5 + (2.2 × (height in inches - 60))
Healthy Weight Range
The healthy weight range is calculated as ±10% of the average ideal weight from all formulas. This provides a practical range that accounts for individual variations and body composition differences.
Range Calculation:
- • Calculate average from all four formulas
- • Lower limit: Average × 0.9 (10% below)
- • Upper limit: Average × 1.1 (10% above)
- • Provides practical weight management target
Limitations and Considerations
What These Formulas Don't Account For:
- • Muscle Mass: Athletes may have higher weights due to muscle
- • Bone Density: Individuals with higher bone density may weigh more
- • Body Composition: Fat vs. muscle distribution
- • Age: Weight needs change with age
- • Frame Size: Small, medium, or large frame
- • Medical Conditions: Health conditions affecting weight
When to Use Ideal Weight:
- • As a general guideline for weight management
- • For setting realistic weight loss/gain goals
- • As a reference point for health discussions
- • For initial weight assessment
When to Consult a Healthcare Provider
Important: Ideal weight calculations are estimates. Always consult with a healthcare provider for personalized weight management advice.
Consider seeing a healthcare provider if:
- • You have a medical condition affecting weight
- • You're taking medications that affect weight
- • You have a history of eating disorders
- • You're pregnant or breastfeeding
- • You need a specialized weight management plan
- • You're not seeing expected results
- • You have concerns about your weight management approach
Multiple Formulas
Uses four scientific formulas for comprehensive ideal weight calculation.
Healthy Range
Get a practical healthy weight range for weight management goals.