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Ideal Weight Calculator
🎯 Ideal Weight Calculator
No single formula agrees exactly on 'ideal' weight, so this runs your height through three established methods — Devine, Hamwi, and a BMI-based estimate — and averages them for a more balanced figure.
The Devine formula was originally developed for medical drug-dosage calculations, not fitness goals — which is worth knowing, since it tends to produce lower figures than what many people would consider their personal ideal. Treat all three numbers as a reasonable range rather than a single target to hit exactly.
Frequently Asked Questions
Why do the three formulas give different answers?
Each was developed for a different original purpose (medical dosing, nutrition planning, population BMI studies) using different reference populations, so some spread between them is expected and normal.
Does frame size actually change the calculation?
In this tool it's shown for context, but the core Devine/Hamwi/BMI formulas here are height-based; frame size matters more in older insurance-table methods not used here.
Is 'ideal weight' the same as the weight I should aim for?
Not necessarily — body composition, muscle mass, and personal health goals matter more than hitting a formula-derived number exactly. Use it as a reference point, not a strict target.
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