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TyG Index Calculator (Triglyceride-Glucose)
Estimate insulin resistance when you do not have a fasting insulin value.
The TyG index estimates insulin resistance using only fasting triglycerides and glucose — values almost every basic lab panel includes.
Enter your values above to see your result.
Formula
TyG = ln[(triglycerides × glucose) / 2]
How it is calculated
The TyG index combines fasting triglycerides and glucose into one number. Both rise when insulin is chronically high, so TyG works as a stand-in for insulin resistance.
It is validated as a predictor of type 2 diabetes, fatty liver and cardiovascular disease, including Latin American cohorts.
Frequently asked questions
TyG or HOMA-IR?
HOMA-IR is more direct if you have fasting insulin. TyG is excellent with a routine triglycerides + glucose panel.
Scientific references
- Guerrero-Romero F et al. The TyG index as marker of insulin resistance. J Clin Endocrinol Metab 2010;95:3347-51
- Simental-Mendía LE et al. Metab Syndr Relat Disord 2008;6:299-304
Educational tool — does not replace medical advice. Discuss your results with your doctor.