Ideal body weight (Robinson formula)
Calculates the ideal body weight for medication dosing according to the Robinson formula.
Research authors: Robinson JD, Lupkiewicz SM, Palenik L, Lopez LM, Ariet M.
Details Formula Study characteristics Files & References
Model author
Model ID
Revision date
MeSH terms
  • Body Weight
  • Ideal Body Weight
  • Ideal Body Weight Formula
  • Model type
    Custom model (Conditional)
    Condition Formula

    Additional information

    No specific details regarding the study characteristics available. 

    The 1983 Metropolitan
    Life height–weight tables were used as a basis to generate ideal body weight (IBW) equations. 

    Study Population

    Total population size: 0

    Additional characteristics

    No additional characteristics defined
    Ideal body weight (Robinson formula)
    Refer to Intended Use for instructions before use
    Evidencio B.V., Irenesingel 19, 7481 GJ, Haaksbergen, the Netherlands

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    Calculated ideal body weight (Robinson formula): kg

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    Outcome stratification

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    Conditional information

    Result interpretation

    Multiple ideal body weight formulas have been developed to assist physicians with dosing weight-based medications. Please confirm with your local pharmacy whether ideal or actual body weight should be used for medication dosing. 

    Definition of ideal body weight:
    The term ideal body weight (IBW) was coined based on historical data of weights for adult men and women that compared the relative mortality of persons of different height–weight combinations (Knapp, 1983).

    Model performance:
    Pai & Paloucek (2000) reported that alternative IBW equations by Devine (1974) and Miller et al (1983) both resulted in similar results when compared with the Robinson formula (Robinson et al, 1983), indicating that any one of these equations may be used to estimate IBW.

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    Calculations alone should never dictate patient care, and are no substitute for professional judgement. See our full disclaimer.

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    Disclaimer: Calculations alone should never dictate patient care, and are no substitute for professional judgement.