Ideal Body Weight Calculator
Ideal body weight formulas give a quick reference range for clinical and personal use. This calculator uses the Devine and Hamwi formulas alongside the BMI-based healthy range — remember these are statistical averages, not individual targets.
Frequently Asked Questions
What is the Devine formula for ideal body weight?+
The Devine formula calculates ideal weight as 50 kg (men) or 45.5 kg (women) for 5 feet of height, plus 2.3 kg for every additional inch. It is the most widely used clinical reference, originally designed for medication dosing.
Is ideal body weight the same as a healthy BMI weight?+
Not exactly. BMI-based healthy weight is any weight that gives a BMI of 18.5–24.9, producing a range. Ideal weight formulas like Devine give a single point estimate. For most people, the Devine ideal weight falls within the BMI healthy range.
Should I try to achieve my ideal body weight?+
Ideal body weight is a statistical reference, not a personal target. A more practical goal is being within the BMI healthy range (18.5–24.9) and having good metabolic markers (blood pressure, blood sugar, cholesterol). Consult a doctor before setting weight goals.