Friedewald Equation for Low Density Lipoprotein (LDL-C)

 
LDL = TotalChol - (Triglyceride / 5) - HDL

 
Input:
 
Total Chol  
HDL  
Triglyceride  

 
Result:
 
LDL  
 
Decimal Precision  
 
Notes
  • In the formula above LDL represents LDL-C and HDL represents HDL-C.
  • This calculation is not valid when the Triglyceride level is ≥400 mg/dL.

 
References
  1. Friedewald WT, Levy RI, Fredrickson DS. Estimation of the concentration of low-density lipoprotein cholesterol in plasma, without use of the preparative ultracentrifuge. Clin Chem. 1972, 18;499-502. PubMed ID: 4337382 PubMed Logo

 

 
 
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