Ideal Weight Calculator
Calculate your ideal weight using multiple scientific formulas and BMI ranges.
Ideal Weight by Formula:
Different formulas have been developed over the years to estimate ideal body weight:
- Robinson Formula (1983): Most commonly used in clinical settings
- Miller Formula (1983): Alternative to Robinson with slightly different coefficients
- Devine Formula (1974): Originally developed for drug dosing calculations
- Hamwi Formula (1964): One of the earliest formulas, still widely referenced
The average of these formulas provides a good estimate of your ideal weight range.
- These formulas are estimates and may not account for individual body composition
- Muscle mass, bone density, and body frame size can affect your ideal weight
- The BMI range (18.5-24.9) provides a broader, more flexible target
- Consult with healthcare professionals for personalized weight management advice
- Focus on overall health and fitness rather than just the number on the scale
- Maintain a balanced diet with appropriate portion sizes
- Include regular physical activity in your routine
- Stay hydrated and get adequate sleep
- Set realistic, gradual weight goals (1-2 pounds per week)
- Track your progress with measurements, not just weight
- Consider working with a nutritionist or personal trainer
How to Use This Ideal Weight Calculator
Our ideal weight calculator uses multiple scientific formulas to estimate your ideal body weight. Here's how to use it:
- Select your gender (male or female).
- Choose your preferred unit system (metric or imperial).
- Enter your height (in centimeters or feet/inches).
The calculator will instantly show your ideal weight according to four different scientific formulas, plus a healthy BMI weight range.
Understanding Ideal Weight Formulas
Different medical professionals and researchers have developed various formulas to estimate ideal body weight over the decades:
Robinson Formula (1983)
The most commonly used formula in clinical settings:
Miller Formula (1983)
An alternative to Robinson with slightly different coefficients:
Devine Formula (1974)
Originally developed for calculating drug dosages:
Hamwi Formula (1964)
One of the earliest and most referenced formulas:
Ideal Weight vs. BMI
While ideal weight formulas provide specific target weights, the Body Mass Index (BMI) approach offers a weight range based on your height:
| Approach | Method | Best For |
|---|---|---|
| Ideal Weight Formulas | Specific calculations based on height and gender | Setting precise weight goals |
| Healthy BMI Range | Weight range for BMI 18.5-24.9 | Flexible target with room for individual variation |
The BMI range often provides a more realistic and flexible target, as it accounts for natural variation in body composition and frame size.
Factors That Affect Ideal Weight
Several factors can influence what constitutes an ideal weight for you:
- Body Frame Size: Small, medium, or large frame affects ideal weight
- Muscle Mass: Athletes and active individuals may weigh more due to muscle
- Bone Density: Varies between individuals and affects overall weight
- Age: Metabolism and body composition change with age
- Ethnicity: Different populations may have different healthy weight ranges
- Health Conditions: Some medical conditions affect ideal weight targets
Using Your Results
Here's how to interpret and use your ideal weight calculation results:
If You're Above Your Ideal Weight:
- Set a realistic weight loss goal (1-2 lbs per week)
- Focus on creating a moderate calorie deficit
- Combine healthy eating with regular exercise
- Consider consulting a healthcare provider
If You're Below Your Ideal Weight:
- Focus on healthy weight gain strategies
- Increase calorie intake with nutritious foods
- Include strength training to build muscle
- Consult a healthcare provider if significantly underweight
Limitations and Considerations
Important Notes:
- These formulas are estimates and may not be suitable for everyone
- They don't account for individual body composition differences
- Athletes with high muscle mass may exceed "ideal" weight but be very healthy
- Older adults may have different healthy weight ranges
- Pregnant or breastfeeding women should not use these calculations
- Always consult healthcare professionals for personalized advice