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Ideal Weight Calculator

Ideal weight using 4 medical formulas (Robinson, Miller, Devine, Hamwi)

Ideal Weight Calculator

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Ideal weight formulas estimate a target weight based solely on height and sex. Multiple formulas exist (Robinson, Miller, Devine, Hamwi) and typically give similar but not identical results. No single formula is universally accepted — the "ideal" weight also depends on muscle mass, bone density, and individual health.

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Tip: A healthy BMI range (18.5–24.9) often gives a more useful target weight window than any single formula. For someone 5'10", that is 129–174 lbs.

  1. 1All formulas start from a base weight at 5 feet (60 inches) height
  2. 2Add a fixed amount per inch (or cm) above that base
  3. 3Men generally have higher ideal weights than women at the same height
  4. 4Results are reference points — BMI 18.5–24.9 often gives a wider healthy range
Male, 5'10" (178 cm)=Robinson: 72kg, Devine: 75kg, Miller: 73kgAverage ~73 kg (161 lbs)
Female, 5'6" (168 cm)=Robinson: 62kg, Devine: 59kg, Miller: 64kgAverage ~62 kg (136 lbs)
FormulaBase (lbs)Per inch above 5ft
Robinson (1983)114.6 lbs+4.2 lbs
Miller (1983)123.9 lbs+3.1 lbs
Devine (1974)110.2 lbs+5.1 lbs
Hamwi (1964)106 lbs+6.0 lbs

Fun Fact

The Devine formula was originally created in 1974 for drug dosing calculations — not for health goals. It has since been widely adopted as a rough weight reference despite this origin.

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