Calculate your ideal weight
Four scientific formulas compared. Use the average range as a reference, not as an absolute target.
Enter your height and sex to calculate
Statistical indicator. Does not replace the assessment of a health professional.
Comparing the formulas
Devine's formula (1974) is the most used clinically. Robinson (1983) and Miller (1983) refine it with updated coefficients.
Hamwi's formula (1964) is the oldest. No formula is universally superior.
"Ideal weight" is a statistical concept, not an individual health goal.
FAQ about ideal weight
How does the Devine formula calculate ideal weight?
For men: 50 + 2.3 × (height in inches − 60). For women: 45.5 + 2.3 × (height in inches − 60). It is the most used formula in clinical settings for drug dosing.
Why do the four formulas give different results?
Each formula uses different coefficients based on historical population samples. The variation between formulas reflects the inherent uncertainty of the concept of "ideal weight".
Is ideal weight different for men and women?
Yes. All four formulas use different base values for men and women, because body composition and skeletal structure differ between sexes.
Should I aim exactly for the average calculated weight?
No. The average of the four formulas is a statistical reference, not an absolute goal. Body, medical history, and subjective well-being matter more than a number.
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