Ideal Weight Calculator

Estimate your ideal body weight based on height and gender using popular formulas.

Select units, enter height and gender.

These formulas provide estimates and don't account for body composition (muscle vs. fat), frame size, or individual health factors. Consult a healthcare professional.

Estimating Your Ideal Weight Range

The concept of an "ideal" weight is complex and highly individual. However, several formulas have been developed over the years to estimate a healthy weight range based primarily on height and gender. These formulas provide a general guideline but should not be considered definitive, as they don't account for crucial factors like muscle mass, body composition, frame size, or overall health.

This calculator presents results from several popular formulas to give you a range of estimates.

How to Use

  1. Select Metric or Imperial units for height.
  2. Select your biological Gender.
  3. Enter your Height accurately in the chosen units.
  4. Click "Calculate Ideal Weight".

The results area will show the estimated ideal weight according to different formulas (e.g., Robinson, Miller, Devine, Hamwi), usually presented in both kilograms and pounds.

Common Ideal Weight Formulas (Examples)

These formulas typically calculate a base weight for a minimum height (often 5 feet or ~152 cm) and add a certain amount of weight for each additional inch/cm above that base height.

  • G. J. Hamwi Formula (1964):
    • Male: 48.0 kg + 2.7 kg per inch over 5 feet.
    • Female: 45.5 kg + 2.2 kg per inch over 5 feet.
  • B. J. Devine Formula (1974):
    • Male: 50.0 kg + 2.3 kg per inch over 5 feet.
    • Female: 45.5 kg + 2.3 kg per inch over 5 feet.
  • J. D. Robinson Formula (1983):
    • Male: 52 kg + 1.9 kg per inch over 5 feet.
    • Female: 49 kg + 1.7 kg per inch over 5 feet.
  • D. R. Miller Formula (1983):
    • Male: 56.2 kg + 1.41 kg per inch over 5 feet.
    • Female: 53.1 kg + 1.36 kg per inch over 5 feet.

*(Note: This calculator will perform the necessary unit conversions internally.)*

Limitations

These formulas were often developed based on specific populations or for medication dosage calculations and have limitations:

  • They don't directly measure health or body fat.
  • They don't account for muscle mass (muscle weighs more than fat).
  • They don't consider body frame size (small, medium, large).
  • They may not be accurate for very tall or very short individuals, or for children/adolescents.

Consider these results as rough estimates. A healthy weight is best determined in consultation with a healthcare provider, considering BMI, waist circumference, body composition, and overall health status.