"Ideal weight" formulas were originally developed decades ago to estimate medication dosing, not to set personal goals. This calculator shows the commonly cited Devine formula result for reference — treat it as a rough population-level estimate, not a personal target.
Ideal Weight Calculator
LiveThe Devine formula
A man at 5'10" (70 inches): 50 + 2.3 × (70 − 60) = 50 + 23 = 73 kg (about 160.9 lb).
Why this number is a rough estimate, not a target
The Devine formula was created in 1974 to help estimate medication dosing, not to define a personal health goal. It doesn't account for muscle mass, frame size, age, or body composition — two people at the identical height can have very different healthy weights depending on how muscular they are. We show the healthy BMI-based weight range alongside it for a broader, more realistic picture than a single number can offer.
Step-by-step guide
- Select your sex and enter your height.
- Read the Devine formula estimate alongside the wider healthy-BMI weight range.
- Treat both as general reference points, not personal targets — a doctor can help interpret a healthy weight for your individual body.
Frequently asked questions
Should I try to reach the exact number shown?
Not necessarily — this is a rough population-level formula, not a personalized target. A wide range of weights can be healthy depending on your build, muscle mass, and overall health. Speak with a doctor for guidance specific to you.
Why do different "ideal weight" calculators give different numbers?
Several formulas exist (Devine, Robinson, Hamwi, and others), each from a different era and dataset, so they don't always agree. None is more "correct" than the others — they're all rough estimates.
Does this account for muscle mass?
No — someone with significant muscle mass will typically weigh more than this estimate while still being at a healthy body composition. Body fat percentage is a better gauge of composition than weight alone.
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