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Ideal Weight Calculator

Compare four historical height-based reference equations with a separate adult BMI-based weight interval. They can disagree; none defines a personal ideal or goal.

These historical equations are not individualized health targets or medical advice. Their original coefficients are binary and sex-specific; they may not fit everyone. The BMI interval is a screening reference for adults, not a diagnosis, and BMI does not describe body composition. Not for children, pregnancy, or clinical dosing.

How does this ideal weight calculator work?

Enter height and choose the historical coefficient set to compare Devine, Robinson, Miller and Hamwi estimates. A separate interval converts adult BMI values 18.5–24.9 to weights at that height.

Frequently asked questions

How does this ideal weight calculator work?

Enter height and choose the historical coefficient set to compare Devine, Robinson, Miller and Hamwi estimates. A separate interval converts adult BMI values 18.5–24.9 to weights at that height.

Is my height sent or saved?

No. The calculation runs in this browser. The height you enter is not uploaded or saved by this tool.

Is there one correct ideal weight for my height?

No. Historical equations produce different estimates, and a BMI-based interval is a separate screening reference. Neither determines a personal goal or accounts for body composition or individual health.

Why do the male and female equation sets differ?

The historical equations use separate binary coefficient sets. They may not be appropriate for everyone; the BMI interval does not use this selection.

Can I use this for a child or medication dose?

No. This page is an educational comparison for adults only. Do not use it to choose a weight goal, diagnose a condition, or calculate medication doses; ask a qualified healthcare professional.