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Calculator: Friedewald Equation for Low Density Lipoprotein (LDL-C) (conventional units)*


Calculator: Friedewald Equation for Low Density Lipoprotein (LDL-C) (conventional units)*

 
Input
 
Total cholesterol  
HDL-C  
Triglyceride  

 
Result
 
Important: Inputs must be complete to perform calculation.

 
 
LDL-C  
 
Decimal precision  

 
 

 
Notes
  • This calculation is not valid when the Triglyceride level is ≥400 mg/dL.
  • HDL-C: high-density lipoprotein cholesterol; LDL-C: low-density lipoprotein cholesterol.
  • * This calculator uses conventional units (also known as US units and gravimetric units) as the default for inputs. Do not use this calculator if you are using SI units (Système international d'unités); please refer instead to the SI units version of this calculator.

 
Equations used
 
LDL-C = Total cholesterol - (Triglyceride / 5) - HDL-C

 

 
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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Topic 13461 Version 8.0