Why do the formulas disagree?

Each formula was derived from different data and assumptions, so they give slightly different targets. Treat them as a reference range, not an exact goal.

Ideal Weight Calculator

Find your ideal body weight using the Robinson, Miller, Devine, and Hamwi formulas, alongside the healthy weight range from a normal BMI for your height.

How to use Ideal Weight Calculator

Choose your gender and units.
Enter your height.
Compare the formula results and healthy BMI range.

Frequently asked questions

Why do the formulas disagree?: Each formula was derived from different data and assumptions, so they give slightly different targets. Treat them as a reference range, not an exact goal.

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