Free Ideal Weight Calculator

Find your ideal weight range based on your height and gender. This calculator uses four scientific formulas (Devine, Robinson, Miller, Hamwi) and shows a consensus range.

Ideal Weight Calculator

Ideal Weight Range (consensus)
Devine Formula
Robinson Formula
Miller Formula
Hamwi Formula

How to Use

Select your gender and enter your height in centimeters. The calculator shows your ideal weight according to four different medical formulas, plus a consensus range.

These formulas were developed for medical use to estimate ideal body weight for dosage calculations. They provide a general guideline, not an exact target.

Formulas Used

  • Devine (1974): Male: 50 + 0.9 × (height - 152), Female: 45.5 + 0.9 × (height - 152)
  • Robinson (1983): Male: 52 + 0.75 × (height - 152), Female: 49 + 0.67 × (height - 152)
  • Miller (1983): Male: 56.2 + 0.56 × (height - 152), Female: 53.1 + 0.56 × (height - 152)
  • Hamwi (1964): Male: 48 + 1.1 × (height - 152), Female: 45.5 + 0.9 × (height - 152)

Frequently Asked Questions

Ideal body weight is a weight range associated with the lowest health risks. These formulas were originally developed for medical dosing but are commonly used as general health guidelines.
No single formula is universally most accurate. The Devine formula is most commonly used in clinical settings. Your ideal weight depends on your body composition, frame size, and muscle mass.