Ideal Weight Calculator
Computes ideal body weight (IBW) ranges based on height, gender, and age using multiple formulas for side-by-side comparison.
Modify the values and click the Calculate button to use
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Other Units
ages 2 – 80
ages 2 – 80
Other unit conversions coming soon...
Most IBW formulas were introduced to estimate medical dosages. The WHO recommends BMI (18.5–25 kg/m²) to define healthy weight ranges for adults.
Ideal Weight by Formula
Robinson (1983)
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Based on height and gender
Miller (1983)
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Based on height and gender
Devine (1974)
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Originally for drug dosing
Hamwi (1964)
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Simple height-based formula
Ideal Weight Based on BMI
— kg
Healthy BMI Range: 18.5 – 25 kg/m²
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