Ideal Weight Calculator

Find your perfect weight range using scientifically validated formulas. Get personalized ideal weight calculations based on your height and gender to set realistic health and fitness goals.

Ideal Weight Calculator

About Ideal Weight Calculations:

This calculator uses multiple scientifically-validated formulas (Hamwi, Devine, Robinson, Miller) plus BMI-based ranges to provide a comprehensive ideal weight assessment. Individual results may vary based on body frame, muscle mass, and overall health.

Formula Information

Hamwi Formula
Most commonly used by medical professionals
Devine Formula
Originally developed for drug dosing calculations
Robinson Formula
Variation that tends toward lower weights
Miller Formula
More recent formula based on body composition

Weight Management Guidance

Ideal Weight is a Range, Not a Number

Different formulas produce different results because ideal weight varies based on body frame, muscle mass, and individual factors. Use the average as a guideline, not an absolute target. A 10-20 pound range around the calculated ideal is normal and healthy. Athletes with more muscle may weigh more than the formula suggests while still being healthy.

Set Realistic Goals

Safe weight loss is 1-2 pounds per week. Losing 50 pounds takes 6-12 months minimum. If your current weight differs significantly from your ideal weight, set intermediate goals every 10-15 pounds. Rapid weight loss usually leads to muscle loss and weight regain. Sustainable changes to diet and activity matter more than speed.

Body Composition Matters More

Weight alone doesn't show the full picture. Two people at the same height and weight can look different based on muscle and fat distribution. Strength training builds muscle, which weighs more than fat but takes up less space. Focus on body fat percentage and measurements alongside weight for better health tracking.

Age and Medical Factors

Ideal weight formulas are designed for adults and may not apply to seniors, teenagers, or people with medical conditions. Older adults can be healthy at slightly higher weights. Discuss weight goals with a doctor if you have diabetes, heart disease, or other health conditions. Pregnancy, medications, and hormones affect weight targets.