Ideal Weight Calculator for Men & Women
Find your ideal weight range based on height and gender using the Devine formula.
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Gender
Ideal Weight
65.9 kg
Healthy range: 59.3 – 72.5 kg
Ideal weight formulas are general guidelines. Consult a healthcare professional for personalized advice.
Calculation History
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Frequently Asked Questions
How is ideal weight calculated?
This calculator uses the Devine formula (1974): for men, 50 kg + 2.3 kg per 2.5 cm above 1.52 m; for women, 45.5 kg + 2.3 kg per 2.5 cm above 1.52 m. The result is a reference point, not an absolute target.
Is ideal weight the same for men and women?
No. The Devine formula has different constants for men and women. For the same height, the calculated ideal weight for men is generally higher than for women, reflecting average differences in muscle mass and bone structure.
What is ideal weight vs BMI?
Ideal body weight (Devine formula) gives a target number in kg based on height and gender. BMI is a dimensionless ratio (weight/height²) that places you in a population category. Both are approximations and do not consider individual body composition.
Does ideal weight change with age?
The Devine formula does not adjust for age, but body composition does change. After age 40, progressive muscle loss (sarcopenia) means a weight slightly above the calculated ideal may be healthy. Complement with the body fat calculator for a fuller picture.
What is the healthy weight range?
The healthy range is ±10% around the calculated ideal weight. For example, if your ideal weight is 65 kg, the healthy range is 58.5–71.5 kg. This accounts for individual variation in bone structure and muscle mass.
What if I am shorter than 1.52 m (5 ft)?
The Devine formula is unreliable below 1.52 m. For shorter individuals, BMI with a target range of 18.5–24.9 is a more appropriate reference.
What is the Devine formula used for clinically?
Beyond weight assessment, ideal body weight is used in pharmacology for medication dosing, nutritional assessments, and as a reference in surgical planning. The formula was originally developed for gentamicin dosing.