About the Ideal Weight Calculator
Ideal body weight formulas were developed mainly for medication dosing, but they are a useful reference point. See results from four classic formulas alongside the healthy BMI weight range for your height.
How to use it
- Choose sex and units.
- Enter your height.
- Compare formula results and the healthy BMI range.
Formula & method
Devine (men): 50 kg + 2.3 kg per inch over 5 ft
Devine (women): 45.5 kg + 2.3 kg per inch over 5 ftFrequently asked questions
Why do the formulas give different answers?
Each was derived from different populations and purposes. Treat them as a range rather than a single target.
Results are estimates for general information only and are not financial, tax, legal or medical advice. Please confirm important decisions with a qualified professional.