Total serum cholesterol, HDL or LDL

This calculator converts cholesterol units form the popularly used mg/dL to the SI units mmol/L. It works for total serum cholesterol, High-Density Lipoproteins (HDL), Low-Density Lipoproteins (LDL), and triglycerides. Converting cholesterol levels measurement units by yourself can be overwhelming, so read on to understand how our cholesterol calculator works and what unit is cholesterol measured in.

It looks like you just had your cholesterol levels checked. If you're interested in using them to assess your heart disease risks and your general health condition, check out our cholesterol ratio calculator. The American Heart Association (AHA) recommends that all adults age 20 or older have their cholesterol checked every four to six years, and work with their healthcare providers to determine their risk for cardiovascular disease and stroke.

Cholesterol levels measurement units - what is cholesterol measured in?

Cholesterol is typically measured in milligrams per deciliter (mg/dL). Millimoles per liter (mmol/L) is the standard medical unit for measuring concentrations of substances in blood. It's used in Canada and some European countries. Various publications use either one or the other unit and it can be confusing to understand the guidelines. Our cholesterol calculator is here to help you.

How does this cholesterol calculator work?

The rules for converting cholesterol units of TC (total cholesterol), HDL (high-density lipoprotein) and LDL (low-density lipoprotein) are the same:

  • To get from mmol/L to mg/dL, you need to multiply by 38.67.
  • To get from mg/dL to mmol/L multiply by 0.02586.

Conversion for TG (triglycerides) is calculated differently:

  • To get from mmol/L to mg/dL multiply by 88.57.
  • To get from mg/dL to mmol/L multiply by 0.01129.

It's possible that you've also had your glucose level assessed. If you need a hand with glucose units, see our glucose unit converter!

Małgorzata Koperska, MD