Health & Fitness
Ideal Body Weight
Devine formula (kg) from height.
Educational estimates only. Not medical, legal, tax, or financial advice.
Guide: Ideal Body Weight
What it does
Computes Devine ideal body weight (IBW) used in some dosing and screening contexts.
How to use it
Enter height in inches or centimeters, select sex, and calculate.
Formula
Men: IBW (kg) = 50 + 2.3×(height−60 in). Women: 45.5 + 2.3×(height−60 in). (Adjustments for metric conversions.)
Example
For a 5 ft 10 in male, IBW ≈ 70–73 kg depending on rounding and exact formula variant used.
FAQs
Is “ideal weight” what I should weigh?
Not necessarily. It is a reference formula, not a goal for every individual.
How does this relate to BMI?
Both are simple metrics; neither captures body composition or health status alone.
Why are there multiple IBW formulas?
Devine, Robinson, and others differ slightly. This tool follows Devine.