Ideal Weight Calculator

Find your healthy weight range using 5 scientifically validated formulas — plus your BMI-based range and how far you are from each target.

Your Measurements

Your Ideal Weight Results

Average (All Formulas)
consensus target
BMI Range (18.5–24.9)
WHO standard
Difference from Average
FormulaIdeal WeightMethodDifference from You
Your Current Position
UnderweightIdealOverweightObese

Hamwi (1964): Men: 48 kg + 2.7 kg per inch over 5ft. Women: 45.5 kg + 2.2 kg per inch over 5ft. One of the most widely used in clinical settings.

Devine (1974): Men: 50 kg + 2.3 kg/inch. Women: 45.5 kg + 2.3 kg/inch over 5ft. Originally developed for medication dosing, widely adopted as a general IBW formula.

Robinson (1983): Men: 52 kg + 1.9 kg/inch. Women: 49 kg + 1.7 kg/inch over 5ft. Slight variation accounting for frame differences.

Miller (1983): Men: 56.2 kg + 1.41 kg/inch. Women: 53.1 kg + 1.36 kg/inch over 5ft. Tends to produce higher ideal weights for taller individuals.

BMI Range: The healthy BMI range (18.5–24.9) translated to weight for your height. The widest range — acknowledges that a single ideal weight is arbitrary.

Important: No single ideal weight formula is definitive. Muscle mass, bone density, age, and ethnicity all affect what "ideal" means for you. Use these as ranges, not exact targets.

⚠️ Ideal weight formulas are population-based estimates and do not account for muscle mass, body composition, or individual health status. Consult a healthcare provider for personalized weight guidance.