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    Patent Pending

    LDL Calculated

    Calculates LDL based on total and HDL cholesterol and triglycerides.


    Note: the Friedewald formula is known to be inaccurate at extremely high triglyceride (>400 mg/dL) and total cholesterol levels. If there is any question about accuracy of estimated LDL, a direct level should be measured.

    • Remember, triglycerides should only be calculated when fasting.
    • The Friedewald formula, on which this calculator is based, is known to be inaccurate at extremes of triglycerides and total cholesterol (Cordova 2004).


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    Creator Insights
    Dr. William Friedewald

    About the Creator

    William Friedewald, MD, is professor of biostatistics and epidemiology at the Columbia University Medical Center. His research focuses on mainly cardiovascular disease though he has begun to research how diabetes can affect traumatic brain injury.

    To view Dr. William Friedewald's publications, visit PubMed

    Are you Dr. William Friedewald? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. William Friedewald
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