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Practical Estimation of Ideal Body Weight and Normalized Lean Weight

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Abstract

Simple formulas for estimating ideal body weight (IBW) and normalized lean weight (NLW) are proposed here. The equations are as follows:

$$ \mathrm{IBW}=W\times 22/\mathrm{BMI} $$
$$ \mathrm{NLW}=W\times \sqrt{22/\mathrm{BMI}\;} $$

where W is equal to total patient weight in kilograms and BMI is the body mass index in units of kg/m2. The calculated values are equivalent for practical purposes to previously published formulas.

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Authors and Affiliations

  1. Department of Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, 2nd Floor, Harry Medovy House, 671 William Avenue, Winnipeg, MB, R3E 0Z2, Canada

    John H P Friesen

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  1. John H P Friesen
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Correspondence to John H P Friesen.

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Friesen, J.H.P. Practical Estimation of Ideal Body Weight and Normalized Lean Weight. OBES SURG 30, 2437–2438 (2020). https://doi.org/10.1007/s11695-019-04380-8

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  • DOI: https://doi.org/10.1007/s11695-019-04380-8

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