AIAZHHow To Use
- Select your gender (male or female) for the appropriate formula.
- Enter your height in centimeters.
- Click "Calculate Ideal Weight" to see results from all four formulas.
- Review the healthy BMI-based weight range as a general guideline.
- Use the average as a reference point — individual healthy weights vary.
Frequently Asked Questions
What is ideal body weight?
Ideal body weight is an estimate of a healthy weight for a given height and gender. It is a screening tool, not an exact target. Individual healthy weights vary based on muscle mass, bone density, and body composition.
Which formula is most accurate?
No single formula is universally most accurate. The Devine formula is commonly used in clinical settings. The Miller formula tends to give slightly higher values. The BMI-based range (18.5-24.9) provides a broader healthy weight range to consider.
How is the Devine formula calculated?
For men: 50 kg + 2.3 kg per inch over 5 feet. For women: 45.5 kg + 2.3 kg per inch over 5 feet. Different formulas use slightly different base weights and increments.
Does ideal weight account for muscle mass?
No, these formulas do not account for muscle mass. Athletes and people with high muscle mass may have a higher weight that is healthy. Body fat percentage is a better indicator for individuals with above-average muscle mass.
Is my height and weight data stored?
No. All calculations are performed locally in your browser. Your personal data never leaves your device.
Should I use ideal weight as a goal?
Ideal weight is a reference range, not a strict target. Focus on overall health markers like body fat percentage, fitness level, energy, and blood work rather than a specific number on the scale.
Multiple Calculation Formulas
Compare ideal weight estimates from four validated formulas: Devine, Robinson, Miller, and Hamwi. See the range across all methods.
Healthy BMI Range Included
In addition to formula-based estimates, see your healthy weight range based on the standard BMI classification (18.5-24.9).
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Your health data never leaves your device. All calculations happen locally in your browser with JavaScript.
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Find Your Ideal Weight Range for Better Health
Our free ideal weight calculator uses four clinically validated formulas to estimate a healthy weight range for your height and gender. While no formula is perfect, the average across multiple methods gives you a reliable reference point for your health and fitness goals.
Different Formulas for Different Populations
Each formula was developed for different populations: Devine (1974) for medical dosage calculations, Robinson (1983) as an update, Miller (1985) for a broader range, and Hamwi (1964) as one of the earliest. The variation between formulas shows why ideal weight is a range, not a fixed number.
Beyond Ideal Weight: What Really Matters for Health
While knowing your ideal weight range is helpful, other factors are better predictors of health: body fat percentage, waist circumference, blood pressure, blood sugar, cholesterol levels, and physical fitness. Use the ideal weight calculator as one tool among many in your health journey.
Healthy Weight Management Strategies
If you are outside your healthy weight range, focus on sustainable changes: balanced nutrition, regular physical activity, adequate sleep, and stress management. Aim for 0.5-1 kg of weight change per week for sustainable results.