Ideal Weight Calculator

Each formula (Devine, Robinson, Miller, Hamwi) was developed by different researchers at different times and gives a slightly different estimate — none is universally "correct," so showing all four gives you a realistic range rather than false precision from a single number.

All four use only height and sex — they don't account for frame size, muscle mass, or body composition, which is why they're treated as rough historical reference points rather than a precise clinical target, especially for very muscular or petite-framed individuals.

They originated in medical and pharmacology contexts — the Devine formula in particular is still widely used today for drug dosage calculations where a weight estimate independent of a patient's actual (possibly edematous or obese) body weight is needed.

These formulas are a reasonable historical reference point, but a more individualized approach factoring in body composition, health markers, and a healthcare provider's guidance will give a far more meaningful target than any single height-based formula.