Body composition · AI-assisted
Ideal Weight Calculator
Compare four clinically-established formulas — Devine, Robinson, Miller, and Hamwi — to find your estimated ideal weight, with AI-powered insight.
CM
All four formulas below use only height and biological sex — frame size and muscle mass aren't captured, so treat the result as a reference range rather than a fixed target.
AI insight
Enter your height to see a personalised comparison across formulas.
Average ideal weight — live result
Profile: Male
66.5
KG AVERAGE
Spread
7.7 kg
Midpoint
66.5 kg
Distance from your current weight
SMART ESTIMATEDifference
11.5 kg over
% of ideal weight
117%
Closest formula
Hamwi
These classic formulas (Devine 1974, Robinson 1983, Miller 1983, Hamwi 1964) were originally developed for medication dosing and clinical reference, not fitness goals. They don't account for muscle mass, bone density, or frame size — a muscular or large-framed person may sit well above these numbers and still be perfectly healthy. AI insight is rule-based, not a medical diagnosis.