HOMA-IR Insulin Resistance
Multiply fasting glucose (mg/dL) by fasting insulin (μU/mL) and divide by 405. Normal glucose with high insulin still raises the score — it flags pre-diabetes early.
Your numbers
HOMA-IR
1.88
What it means
A HOMA-IR of 1.88 is within the usual range (under 2.5).
Formula
HOMA-IR = Glucose (mg/dL) × Insulin (μU/mL) ÷ 405
Cut-offs vary by population; 2.5 is common, but check your laboratory’s reference.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Glucose (mg/dL) (mg/dL)Blood sugar; whether it is fasting or after a meal changes everything. | 95 | 40 ~ 400 |
| Insulin (μU/mL)Fasting insulin concentration. | 8 | 0.5 ~ 100 |
Step by step
Quick reference table
Results when only Glucose (mg/dL) (mg/dL) changes and everything else stays put.
| Glucose (mg/dL) (mg/dL) | HOMA-IR |
|---|---|
| 47.5 | 0.94 |
| 71.3 | 1.41 |
| 95 | 1.88 |
| 143 | 2.82 |
| 190 | 3.75 |
What each result means
| Result | At default values |
|---|---|
| HOMA-IRAn index of how well insulin works; higher means more resistance. | 1.88 |
Common mistakes
Cut-offs vary by population; 2.5 is common, but check your laboratory’s reference.
Glossary
- Glucose (mg/dL)
- Blood sugar; whether it is fasting or after a meal changes everything.
- Insulin (μU/mL)
- Fasting insulin concentration.
- HOMA-IR
- An index of how well insulin works; higher means more resistance.
Frequently asked questions
Q. How is HOMA-IR Insulin Resistance calculated?
HOMA-IR = Glucose (mg/dL) × Insulin (μU/mL) ÷ 405 — Multiply fasting glucose (mg/dL) by fasting insulin (μU/mL) and divide by 405. Normal glucose with high insulin still raises the score — it flags pre-diabetes early.
Q. Can you walk through an example?
With Glucose (mg/dL) 95mg/dL, Insulin (μU/mL) 8, the answer is HOMA-IR 1.88.
Q. What do I need to enter?
Enter Glucose (mg/dL), Insulin (μU/mL). 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 Glucose (mg/dL) (mg/dL) moves the answer to Glucose (mg/dL) (mg/dL) 47.5 → HOMA-IR 0.94 and Glucose (mg/dL) (mg/dL) 190 → HOMA-IR 3.75. 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 by population; 2.5 is common, but check your laboratory’s reference.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.