Ideal weight calculator
Find your ideal weight for your height: healthy BMI range and the Devine, Robinson, Miller, Hamwi, Lorentz, Broca, Creff and Monnerot-Dumaine formulas.
Height and profile
The result appears as soon as you enter your height. The other fields add formulas or the gap with your current weight.
Your current weight is only used to show the gap with the healthy BMI range.
Adds the Creff formula, which takes age into account.
Measured just above the wrist bone; adds the Monnerot-Dumaine formula.
Your reference weight
This is the World Health Organization reference for an adult of your height. It does not account for muscle mass or build.
- Devine1974, the most used in medicine to dose some drugs
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- Robinson1983, a revision of Devine
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- Miller1983, higher values for shorter heights
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- Hamwi1964, in pounds per inch
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- Broca1871, height in cm minus 100
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- Lorentz1929, the most common formula in France
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- Crefftakes age into account, average build
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- Monnerot-Dumainetakes bone frame into account through the wrist
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Enter your age to add Creff and your wrist circumference to add Monnerot-Dumaine.
Method & sources
The tool first works out the weight range matching a BMI of 18.5 to 24.9, the WHO reference. It then compares it with the so-called ideal body weight formulas: four clinical equations that start from a base weight at 5 ft and add a weight per inch, and four European formulas based on height in centimetres.
Healthy range: 18.5 × height² to 24.9 × height² (height in metres) · Devine: 50 kg (men) or 45.5 kg (women) + 2.3 kg per inch over 5 ft · Hamwi: 106 lb (men) or 100 lb (women) + 6 or 5 lb per inch over 5 ftLimitations
- Ideal weight formulas give different results for the same height; none of them sets a personal target.
- They do not account for muscle mass, fat distribution or health status.
- Below 5 ft, the clinical equations are extrapolated and their values become unreliable.
Sources
- Review of historical ideal body weight formulas
- Peterson et al. (2016) - a new body weight equation and formula comparison
- Broca (1871), Lorentz (1929), Creff and Monnerot-Dumaine formulas - French clinical use