Ideal Weight Calculator
Calculate an estimated ideal body weight based on height and sex, plus a healthy weight range based on BMI.
How to use the ideal weight calculator
- Choose your sex and enter your height in centimeters.
- The calculator shows an estimated ideal body weight based on the Devine formula.
- See also a healthy weight range based on a normal BMI (18.5–25) for your height.
How ideal weight is calculated
The calculator uses the Devine formula, originally developed for medical dosing, but widely used today as a general estimate of ideal body weight:
Women: 45.5 kg + 2.3 kg per inch over 152 cm
The calculator also shows a healthy weight range based on a BMI between 18.5 and 25, which gives a broader and more flexible span than a single number. Ideal weight is still just a general estimate — body build, muscle mass and bone structure vary a lot from person to person.
Frequently asked questions
Why is ideal weight different for men and women at the same height?
The Devine formula accounts for the fact that men and women on average have different body composition, including muscle and bone mass, at the same height.
Is "ideal weight" the same as "healthy weight"?
Not necessarily. Ideal weight is one specific number from a formula, while the healthy weight range based on BMI gives a broader span that better accounts for individual variation.
Should athletes use this calculator?
Athletes with high muscle mass can weigh more than their "ideal weight" without it being unhealthy. For this group, body fat percentage is often a better measure — try the body fat calculator.