Frame size changes the answer
Wrist circumference is the traditional proxy for frame: under 6.5 inches for a 5'6" woman suggests a small frame, above 7.5 inches a large one. Adjusting ±10% covers most of the real variation between skeletal builds.
- • Muscular lifters often exceed every ideal-weight formula while being healthy.
- • Use ideal weight as a rough anchor, then judge by body composition.
- • For clinical dosing, Devine remains the most widely used equation.
FAQ
What is my ideal weight for my height?
For most adults the honest answer is a range, not a number: the healthy-BMI window for your height, which this tool shows alongside four classic formulas.
Which ideal body weight formula is best?
Devine is the clinical standard for medication dosing. Robinson and Miller predict measured healthy weights slightly better in modern populations.
Do these formulas work for athletes?
No. They assume average muscle mass and will underestimate healthy weight for trained athletes.
How this calculator is built
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Written by Sam Doshi and the RevenueLab editorial team. We don't sell the data feeds this tool is built on.
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Reviewed on a rolling quarterly cycle. Dated reviews are published on the methodology record for each calculator.
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See our editorial policy and disclaimer. Results are estimates, not advice.