Ideal Weight Calculator — Devine, Hamwi & BMI Range
Rather than one arbitrary target, this calculator shows your ideal weight from multiple evidence-based formulas — Devine, Hamwi, and the healthy BMI range — adjusted for your body frame size. Use it as a reference alongside body fat percentage and how you feel, not as a hard rule.
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Frequently Asked Questions
What is the ideal weight for my height?
There is no single ideal weight — it depends on your gender, frame size, and the formula used. For a 175 cm male with a medium frame, the Devine formula gives ~72 kg, Hamwi gives ~73 kg, and a healthy BMI places you between 56–76 kg. Ranges are more useful than a single number.
Is there one correct ideal weight?
No. Different formulas produce different results and were each developed for different clinical purposes. A range is more meaningful than a single target. Focus on being within the healthy BMI range and having good energy, strength, and bloodwork rather than hitting an arbitrary number.
Does muscle mass affect ideal weight calculations?
Yes, significantly. People with high muscle mass — athletes, strength trainers — may weigh more than formula-based "ideal" weights while having very low body fat. For muscular individuals, body fat percentage is a better measure of health than scale weight or BMI.
What is a small vs large body frame?
Frame size is typically assessed by wrist circumference relative to height. A simple guide: measure your wrist just below the wrist bone. For men over 165 cm: small <17 cm, medium 17–19.1 cm, large >19.1 cm. For women over 157 cm: small <15.2 cm, medium 15.2–16.5 cm, large >16.5 cm.
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tr8ck logs your weight trends over time so you can see exactly how close you are getting to your ideal weight.
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