Ideal Body Weight Calculator

The Ideal Body Weight Calculator estimates a target weight range based on your height, gender, and age using four established medical formulas. Enter your gender, height, and age to see your Average Ideal Weight alongside individual results from the Robinson, Miller, Devine, and Hamwi formulas, plus the weight range corresponding to a healthy BMI.

Gender *

years

Results

Average Ideal Weight

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Robinson Formula

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Miller Formula

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Devine Formula

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Hamwi Formula

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Healthy BMI Range

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Frequently Asked Questions

How much should I weigh for my height?

Your ideal weight depends on various factors including height, gender, age, and body composition. Our calculator uses four established medical formulas to provide a range of healthy weights for your height.

What do my ideal body weight results mean?

The results show your ideal weight according to different medical formulas. These are reference values used by healthcare professionals, particularly for medication dosing and nutritional planning.

Which formula is most accurate for calculating ideal weight?

Each formula has its strengths. The Robinson and Miller formulas are newer adaptations, while Devine and Hamwi are classic methods. The average of all four provides a balanced estimate.

Is ideal body weight the same as healthy weight?

Not necessarily. Ideal body weight formulas are primarily used for medical calculations. For overall health, BMI ranges and body composition are better indicators than a single ideal weight number.

Why do the formulas give different results?

Different formulas use varying calculations and were developed for different purposes. This variation is normal and why we show multiple results to give you a comprehensive range.

Can I use this calculator if I have obesity?

While you can use this calculator, people with obesity may need adjusted body weight calculations for medical purposes. Consult your healthcare provider for personalized guidance.

How accurate are ideal body weight calculations?

These formulas provide good estimates for average body types but don't account for muscle mass, bone density, or body composition. They're most useful as reference points rather than absolute targets.