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Calculate your ideal weight using multiple proven formulas
Enter your details to calculate ideal body weight
Most widely used formula in medical settings.
Men: 50 kg + 2.3 kg per inch over 5 feet
Women: 45.5 kg + 2.3 kg per inch over 5 feet
Modified version providing slightly lower estimates.
Men: 52 kg + 1.9 kg per inch over 5 feet
Women: 49 kg + 1.7 kg per inch over 5 feet
Provides more conservative estimates.
Men: 56.2 kg + 1.41 kg per inch over 5 feet
Women: 53.1 kg + 1.36 kg per inch over 5 feet
Original IBW formula, still used in nutrition.
Men: 48 kg + 2.7 kg per inch over 5 feet
Women: 45.5 kg + 2.2 kg per inch over 5 feet
| Gender | Small Frame | Medium Frame | Large Frame |
|---|---|---|---|
| Men | Wrist < 6.5" | Wrist 6.5-7.5" | Wrist > 7.5" |
| Women | Wrist < 5.5" | Wrist 5.5-6.5" | Wrist > 6.5" |
Ideal body weight (IBW) is the optimal weight range for your height, gender, and frame size. It's used in medical settings for medication dosing, nutritional planning, and health assessments.
No single formula is definitively 'best.' Devine is most commonly used in medical practice, but averaging multiple formulas provides a more reliable range. Individual factors like muscle mass and body composition also matter.
Each formula was developed using different populations and methods. The variations reflect different approaches to estimating healthy weight, which is why we recommend considering the range rather than a single number.
Frame size accounts for bone structure differences. Small frames typically support 10% less weight, while large frames can support 10% more weight than medium frames at the same height.
Not necessarily. IBW provides a general guideline, but healthy weight depends on body composition, muscle mass, and overall health. BMI, body fat percentage, and other metrics should also be considered.
IBW formulas don't account for high muscle mass. Athletes and bodybuilders may weigh more than their IBW and still be healthy. Body composition analysis is more relevant for athletic populations.
IBW is a guideline, not a strict target. Focus on the healthy weight range and overall wellness. Consult healthcare providers for personalized weight goals based on your health status and body composition.
Historical formulas were developed with 5 feet (60 inches) as a baseline. The formulas add weight per inch above this height. For heights below 5 feet, the calculations still work but may be less accurate.
Medical Disclaimer: This calculator provides estimates for educational purposes only. Ideal body weight calculations do not account for individual factors like muscle mass, bone density, or health conditions. Always consult healthcare professionals for personalized medical advice and weight management guidance.