Ideal Weight Calculator
Compare ideal body weight from four classic formulas.
How to use the Ideal Weight Calculator
Shows Devine, Robinson, Miller and Hamwi estimates alongside the healthy BMI range.
Formula
Devine (men) = 50 kg + 2.3 kg per inch over 5 ft
Worked example
A 175 cm man has a Devine ideal weight of about 70.5 kg.
Frequently asked questions
Which formula is best?
None is perfect; they were designed for dosing medication. Treat them as a range, not a target.
Results are estimates for educational and planning purposes. Always confirm important financial, health or legal decisions with a qualified professional. Last reviewed 2026-09-27.