Ideal Weight Calculator
Find your ideal weight range using multiple scientific formulas
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Your height in centimeters
To see how far you are from ideal
About This Tool
Calculate your ideal body weight using four scientifically validated formulas: Robinson, Miller, Devine, and Hamwi. Each formula uses your height and gender to estimate the weight at which you're likely to be healthiest. We provide the range and average to give you a realistic target.
Frequently Asked Questions
What is ideal body weight?
Ideal body weight (IBW) is an estimated weight range where a person is considered healthiest based on their height and gender. It's used as a reference point for health goals, medication dosing, and nutritional planning.
Why are there different formulas?
Different formulas were developed by different researchers using different populations. Robinson and Miller formulas tend to give slightly higher estimates, while Devine and Hamwi may be lower. Using multiple formulas gives you a realistic range.
Should I target the exact ideal weight?
The ideal weight is a range, not a single number. Being within 10% of the calculated ideal is generally considered healthy. Focus on overall health markers, not just the number on the scale.
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