Ideal Body Weight Calculator

Find your ideal body weight using four established medical formulas. See how they compare and where you fall in the BMI-based healthy range.

Sex
Height
ft
in

Formulas Used

This calculator uses four widely-cited formulas for estimating ideal body weight:

  • Devine (1974): Originally developed for medication dosing, now the most commonly referenced formula.
  • Robinson (1983): A refinement of the Devine formula with slightly different coefficients.
  • Miller (1983): Tends to give slightly higher estimates, especially for taller individuals.
  • Hamwi (1964): One of the earliest formulas, still used in clinical settings.

Important Considerations

These formulas provide rough estimates and don't account for muscle mass, bone density, body composition, or individual variation. For a more complete assessment, also check your BMI and body fat percentage.

Frequently Asked Questions

How much should I weigh for my height?
Ideal weight varies by height, sex, and body composition. For example, a 5'10" male's ideal weight ranges from 149-183 lbs depending on the formula used. The BMI-based healthy range for the same height is 129-174 lbs. These are estimates — muscle mass, frame size, and individual factors all play a role.
Which ideal weight formula is most accurate?
No single formula is definitively most accurate because ideal weight depends on individual factors like muscle mass and bone structure. The Devine formula is most commonly used in clinical settings. Using the average of multiple formulas (Devine, Robinson, Miller, and Hamwi) gives the most balanced estimate.
Is ideal body weight the same as healthy weight?
Not necessarily. 'Ideal body weight' formulas were originally developed for medication dosing, not health optimization. A healthy weight is better defined by the BMI range of 18.5-24.9, body fat percentage, waist circumference, and overall metabolic health markers rather than a single number.