Free Tool
Ideal Weight Calculator
Find your scientifically recommended weight range using 4 trusted medical formulas.
Find Your Ideal Weight
Based on the Devine, Robinson, Miller, and Hamwi formulas.
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Enter your height and gender to get your ideal weight range from 4 trusted medical formulas.
Frequently Asked Questions
Common questions about ideal weight and healthy body weight.
Each formula was developed using different population datasets and methodologies. Devine (1974) is the most widely used in clinical settings, while Robinson (1983) and Miller (1983) adjusted for different body frame sizes. The average of all four gives the most balanced estimate.
No. Ideal weight varies based on gender, body frame size, muscle mass, and age. Two people of the same height can have very different ideal weights depending on their body composition and fitness goals.
These formulas don't account for muscle mass. If you're physically active and have above-average muscle, your healthy weight will be higher than what these formulas suggest. Use body fat percentage as a more accurate measure.
A safe rate of weight change is 0.5-1 kg per week for fat loss, or 0.25-0.5 kg per week for muscle gain. Rapid changes often lead to muscle loss or excessive fat gain. Consistency over 3-6 months produces the best long-term results.
No — think of it as a range, not a single number. A weight within 2-3 kg of the calculated average is perfectly fine. Focus more on how you feel, your body composition, and your fitness performance rather than hitting an exact number.