Ideal Weight Calculator
Calculate your ideal body weight using multiple scientific formulas including Robinson, Miller, Devine, and Hamwi methods.
Ideal Weight Calculator
Enter your information to calculate your ideal body weight
Measure around your wrist bone for frame size assessment
Weight Categories
Formulas Used
Health Tips
- • Focus on overall health, not just weight
- • Consider muscle mass and body composition
- • Maintain regular physical activity
- • Eat a balanced, nutritious diet
- • Consult healthcare providers for guidance
- • Track progress gradually over time
How to Use the Ideal Weight Calculator
Step-by-Step Instructions
Select Your Gender
Choose male or female as this affects the ideal weight calculation formulas significantly.
Enter Your Height
Input your height in centimeters or feet. Toggle units using the unit selector button.
Add Current Weight (Optional)
Enter your current weight to see comparison and get personalized recommendations.
Measure Wrist Size (Optional)
Measure wrist circumference to determine body frame size for more accurate ideal weight ranges.
Calculate Ideal Weight
Click calculate to see results from four established medical formulas.
Review Multiple Formulas
Compare results from Robinson, Miller, Devine, and Hamwi formulas to understand your ideal weight range.
Pro Tips for Best Results
Accurate height measurement: Measure height without shoes, standing straight against a wall for precision.
Wrist measurement technique: Measure wrist at the smallest point with a flexible tape measure - don't pull tight.
Consider multiple formulas: Each formula has strengths - your ideal weight likely falls within the calculated range.
Body composition matters: Muscle weighs more than fat - athletes may weigh more than calculated ideal weight.
Health over numbers: Use results as guidelines - overall health and fitness matter more than exact weight targets.
Understanding Ideal Weight Calculations
Ideal weight calculators use scientific formulas developed by medical researchers to estimate a healthy weight range based on your height and gender. These formulas are widely used in medical practice and research.
Formula Origins
- Robinson (1983): Modern update to earlier formulas
- Miller (1983): Based on large population studies
- Devine (1974): Widely used in medical dosing
- Hamwi (1964): Classic formula for quick estimation
Frame Size Factors
- Small Frame: 10% below average ideal weight
- Medium Frame: Average ideal weight
- Large Frame: 10% above average ideal weight
Frequently Asked Questions
How accurate are ideal weight calculators?
Ideal weight formulas provide estimates based on population averages. Individual factors like muscle mass, bone density, and body composition can significantly affect your optimal weight. Use these results as general guidelines, not absolute targets.
Which formula is most accurate?
No single formula is universally most accurate. Robinson and Miller formulas are more recent and based on larger datasets, while Devine is commonly used in medical settings. The average of multiple formulas often provides the best estimate.
What are the differences between the formulas?
Robinson (1983): Most modern formula, updated based on contemporary population data. Generally considered the most accurate for today's populations.
Miller (1983): Based on extensive population research studies. Similar accuracy to Robinson but uses different calculation parameters.
Devine (1974): Widely used in medical settings, especially for medication dosing calculations. Tends to estimate slightly higher weights.
Hamwi (1964): Classic quick estimation method. Simple formula that's easy to remember but may be less precise for extreme heights.
How do I measure my wrist for frame size?
Measure around your wrist just below the wrist bone (where your wrist bends). Use a measuring tape and measure snugly but not tightly. This measurement helps determine if you have a small, medium, or large frame.
Should I aim for my ideal weight exactly?
Focus on the healthy weight range rather than an exact number. Factors like muscle mass, fitness level, and overall health are more important than achieving a specific weight. Consult healthcare providers for personalized advice.
Medical Disclaimer
This ideal weight calculator is for informational purposes only and should not replace professional medical advice. Individual health factors vary significantly. Consult with healthcare providers for personalized weight management advice, especially if you have medical conditions or are planning significant weight changes.
Related Calculators
BMI Calculator
Calculate your Body Mass Index
BMR Calculator
Calculate your Basal Metabolic Rate
Body Fat Calculator
Estimate body fat percentage
Abacus
Online abacus calculator
Area Converter
Convert area measurements
Home Affordability Calculator
Calculate home buying budget