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

Gender

Height

Current Weight (Optional)

Wrist Circumference (Optional)

Measure around your wrist bone for frame size assessment

Weight Categories

UnderweightBMI < 18.5

Normal weightBMI 18.5-24.9

OverweightBMI 25.0-29.9

ObeseBMI ≥ 30.0

Formulas Used

Robinson (1983): Modern medical standard

Miller (1983): Population-based research

Devine (1974): Clinical dosing reference

Hamwi (1964): Quick estimation method

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

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.