LDL Cholesterol (Friedewald)

LDL cholesterol by Friedewald equation. Not valid when triglycerides exceed 4.5 mmol/L.

About this calculator

The Friedewald equation calculates LDL when direct measurement is unavailable. At high triglyceride levels, direct LDL measurement is preferred.

Source

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(6):499-502.

Formula version: friedewald-1972-v1