Ideal Weight Calculator
Estimates ideal body weight using the Devine formula: IBW = 50 + 0.91×(height_cm - 152) for males. This is a clinical ap...
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How It Works
Estimates ideal body weight using the Devine formula: IBW = 50 + 0.91×(height_cm - 152) for males. This is a clinical approximation — healthy weight ranges vary by body composition.
Quick Reference
Male, 180cm
Devine formula
~75.3 kg
Female, 165cm
Devine formula
~59.4 kg
Healthy weight range
BMI 18.5-24.9
Not single target
Tips & Shortcuts
Ideal weight formulas are clinical tools, not goals. Focus on health markers over the number.
Muscle weighs more than fat — athletes may be above IBW but very healthy.
Consider body composition (fat vs muscle) alongside weight.
Common Mistakes
Treating IBW as a fixed personal goal
IBW is an estimate. A healthy weight range (BMI 18.5-24.9) is more appropriate for personal goals.
Comparing yourself to IBW from a different formula
Devine, Robinson, Miller, and Hamwi formulas give different results. Stick with one consistently.
Frequently Asked Questions
All four formulas (Devine, Robinson, Miller, Hamwi) were developed for clinical drug dosing, not general fitness. The BMI healthy weight range (18.5–24.9) is the current standard.
Each was developed in different decades for different clinical populations. Devine (1974) for drug dosing, Robinson and Miller with larger data sets, Hamwi for diabetes management.
It is a rough benchmark, not a precise target. Body composition — muscle-to-fat ratio — matters more than scale weight.
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