Cholesterol (mg/dL) to Millimoles per litre Converter

About this calculator

Blood cholesterol is reported in milligrams per decilitre (mg/dL) in the US and a handful of other countries, but in millimoles per litre (mmol/L) almost everywhere else. The conversion depends on cholesterol's molar mass (386.65 g/mol): mmol/L = mg/dL × 0.02586 (equivalently, mg/dL = mmol/L × 38.67) — the same 0.0259 factor used for LDL, HDL, and total cholesterol since they're all reported on the same molecular basis.

Patients and physicians reading lab results from a different country's system, researchers combining international clinical trial data, and medical professionals relocating between US and international healthcare settings all need this conversion — a total cholesterol of 200 mg/dL, often cited as a screening threshold, corresponds to about 5.2 mmol/L.