TyG Index
This index estimates insulin resistance without an insulin assay, using two of the commonest blood results. Its appeal is that a standard health check-up already contains both numbers.
Your numbers
TyG index
8.728
Triglycerides
130mg/dL
Glucose (mg/dL)
95mg/dL
What it means
8.728 sits in the borderline band.
Formula
TyG index = log (Triglycerides × Glucose (mg/dL) ÷ 2)
Cut-offs vary between study populations, roughly 8.5 to 8.8. It works better for tracking one person over time than as an absolute threshold.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| TriglyceridesBlood triglycerides — measure after fasting or the number lies. | 130 | 20 ~ 1,000 |
| Glucose (mg/dL)Blood sugar; whether it is fasting or after a meal changes everything. | 95 | 40 ~ 400 |
Step by step
Quick reference table
Results when only Triglycerides changes and everything else stays put.
| Triglycerides | TyG index | Triglycerides (mg/dL) | Glucose (mg/dL) (mg/dL) |
|---|---|---|---|
| 65 | 8.035 | 65 | 95 |
| 97.5 | 8.441 | 98 | 95 |
| 130 | 8.728 | 130 | 95 |
| 195 | 9.134 | 195 | 95 |
| 260 | 9.421 | 260 | 95 |
What each result means
| Result | At default values |
|---|---|
| TyG indexInsulin resistance gauged from triglycerides and glucose alone. | 8.728 |
| Triglycerides (mg/dL)Blood triglycerides — measure after fasting or the number lies. | 130 |
| Glucose (mg/dL) (mg/dL)Blood sugar; whether it is fasting or after a meal changes everything. | 95 |
Common mistakes
Cut-offs vary between study populations, roughly 8.5 to 8.8. It works better for tracking one person over time than as an absolute threshold.
Glossary
- Triglycerides
- Blood triglycerides — measure after fasting or the number lies.
- Glucose (mg/dL)
- Blood sugar; whether it is fasting or after a meal changes everything.
- TyG index
- Insulin resistance gauged from triglycerides and glucose alone.
Frequently asked questions
Q. How is TyG Index calculated?
TyG index = log (Triglycerides × Glucose (mg/dL) ÷ 2) — This index estimates insulin resistance without an insulin assay, using two of the commonest blood results. Its appeal is that a standard health check-up already contains both numbers.
Q. Can you walk through an example?
With Triglycerides 130, Glucose (mg/dL) 95, the answer is TyG index 8.728.
Q. What do I need to enter?
Enter Triglycerides, Glucose (mg/dL). The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Triglycerides moves the answer to Triglycerides 65 → TyG index 8.035 and Triglycerides 260 → TyG index 9.421. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Cut-offs vary between study populations, roughly 8.5 to 8.8. It works better for tracking one person over time than as an absolute threshold.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.