Ideal Weight Calculator
Compare healthy ideal weight benchmarks across Devine, Robinson, and WHO BMI models.
Estimated Ideal Body Weight
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How to Calculate Ideal Body Weight
- Select sex and enter height.
- The tool computes clinical formulas: Devine, Robinson, Miller, Hamwi, and healthy WHO BMI ranges (18.5 – 24.9).
- View your recommended target healthy weight span.
Validated Ideal Body Weight Formulas
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Devine Formula (Men):
50 kg + 2.3 kg per inch over 5 feet -
Devine Formula (Women):
45.5 kg + 2.3 kg per inch over 5 feet -
WHO BMI Range:
Min Weight = 18.5 × [Height (m)]²|Max Weight = 24.9 × [Height (m)]²
Example
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For a male standing
178 cm (5 ft 10 in):Devine Ideal Weight ≈ 73.0 kg (161 lbs).WHO Healthy Weight Range = 58.6 kg to 78.9 kg.
Common Applications
- Setting realistic, evidence-based long-term fitness goals.
- Medical anesthesia and drug dosing guidelines.
Limitations
- Formulas were initially designed in clinical pharmacology for drug dosage calculations rather than aesthetic weight targets.
- Frame size (small, medium, large bone structure) causes normal healthy weights to span a broad range.
Frequently Asked Questions
Why are there multiple ideal weight formulas?
Different researchers (Devine, Robinson, Miller, Hamwi) calibrated formulas across different sample cohorts. Showing the comparative range gives the most balanced perspective.
Does frame size change ideal weight?
Yes. Individuals with larger bone structures naturally carry more weight safely within healthy metabolic parameters.
Notice: There is no single "perfect" weight for any individual. Health is determined by physical fitness, blood work, diet, and sleep, not just scale weight.