Printed on 2/13/2026
For informational purposes only. This is not medical advice.
Ideal body weight (IBW) is an estimated weight range considered healthy for a given height and sex. Several formulas have been developed over decades by researchers, each producing slightly different results. This tool uses four well-known formulas to give you a comprehensive view of your ideal weight range.
Formula: Devine: Male = 50 + 2.3 × (height_in − 60), Female = 45.5 + 2.3 × (height_in − 60)
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
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Ideal body weight (IBW) is an estimated weight considered optimal for a given height and sex. It was originally developed for drug dosing calculations but is now commonly used as a general health reference. Multiple formulas exist because there is no single 'perfect' weight for any individual.
No single formula is universally most accurate. The Devine formula is the most widely used in clinical settings, but Robinson and Miller formulas may provide better estimates for some populations. Using multiple formulas gives you a reasonable range to consider.
No. Ideal weight formulas provide estimates, not targets. A healthy weight depends on many factors including muscle mass, bone structure, body composition, age, and overall fitness. Use these values as a general reference and consult a healthcare professional for personalized advice.
Each formula was developed using different study populations and methodologies. Devine (1974), Robinson (1983), Miller (1983), and Hamwi (1964) each used different data sets and assumptions, which is why results vary. The range across all formulas can give a more realistic picture.