Triglycerides are reported in milligrams per deciliter in the United States and in millimoles per liter across most of Europe, Canada and Asia, a difference of nearly eighty nine fold that confuses anyone reading foreign guidelines or lab reports. This converter switches instantly between the two systems in either direction, using the molecular weight based factor of eighty eight point five.
Your visual report appears here
Fill in the form and press Calculate. You will get your number, an interpretation chip, and a personalized chart pack drawn instantly in your browser.
- Risk spectrum with your position marked
- Reference ranges from the original publication
- Shareable link, nothing stored
Scientific references
Laboratories split into two camps for lipid reporting. Mass concentration, milligrams per deciliter, dominates in the United States and Japan. Molar concentration, millimoles per liter, follows the SI system used in most other countries. The numbers look wildly different, one fifty versus one point six nine, yet describe identical blood.
Where 88.5 Comes From
Triglycerides are mixtures of molecules, but their average molecular weight is taken near eight hundred eighty five grams per mole for conversion purposes. Dividing milligrams per deciliter by eighty eight point five yields millimoles per liter, and multiplying back reverses it. Cholesterol and glucose use different factors, thirty eight point seven and eighteen respectively, which is why mixing the constants produces nonsense.
Reading Ranges Across Systems
Normal triglycerides sit below one fifty milligrams per deciliter, or below one point seven millimoles per liter. Borderline high runs to one ninety nine, two point two six in SI. High reaches four ninety nine, five point six four in SI, and very high begins at five hundred, where pancreatitis risk enters the picture and treatment urgency changes character.
Why It Matters Practically
Patients increasingly read studies and guidelines from other countries, move between health systems, or compare results from different laboratories over years of travel. A mistaken unit read can make a normal result look catastrophic or a dangerous one look fine.
Fasting status matters more than units for accuracy. Triglycerides swing widely after meals, so comparisons should use fasting samples regardless of which system reports them.