TyG Index Calculator

The triglyceride-glucose index. Built from two fasting numbers and studied widely as an insulin resistance surrogate.

mg/dL
mg/dL
Your TyG Index

Reference bands

ResultBand
Under 4.50Lower
4.50 to 4.90Intermediate
Above 4.90Higher

TyG = ln(triglycerides × fasting glucose / 2), both in mg/dL. ⚠️ No single agreed cut point exists; published thresholds range roughly 4.5 to 4.9 and depend on the population studied.

One number is one line of your test.

BloodMarker reads your whole panel and tells you what the lines say together, which is the part no single calculation can do.

Your values carry over · PDF or a photo · about 8 seconds

Questions

What is the TyG index?

It is the natural log of triglycerides multiplied by fasting glucose, divided by two, with both values in mg/dL. It is used in research as a surrogate for insulin resistance.

Do I need to fast?

Yes. Both inputs must be fasting values or the result means very little.

Other calculators

Not medical advice. These calculators are for information only. Reference bands differ between laboratories and none of these numbers can be interpreted without your history, your other results and a clinician. Nothing you type here is sent to us or stored on a server.