How to use: Ideal weight calculators use medical formulas developed through clinical research. Enter your height in centimeters and select your gender. Choose between Robinson Formula (most commonly used) or Miller Formula (alternative medical standard). The calculator shows your ideal weight in kilograms and a healthy weight range (typically ±10% of ideal). These are evidence-based targets, not rigid rules. Your ideal weight depends on many factors including muscle mass, bone density, and body frame. Use this as a general guideline for health goals.

How to use: This calculator determines healthy weight ranges based on BMI guidelines and age adjustments. Enter your height in centimeters and gender. Select your age group (Adult 18+ or Senior 65+) for age-appropriate recommendations. The calculator shows two ranges: Healthy Weight Range (BMI 18.5-24.9) and Optimal Weight Range (BMI 21-23, the middle of healthy). Seniors may benefit from slightly higher weights for bone health. Each range includes specific health recommendations. This helps you set realistic weight goals based on medical guidelines rather than arbitrary numbers.