QUICKI Insulin Sensitivity Index
It uses the same two values as HOMA-IR but takes logarithms to even out the distribution. The direction flips: HOMA-IR is worse when high, QUICKI is better when high, with about 0.357 as the normal reference.
Your numbers
QUICKI
0.3471
HOMA-IR
1.88
Glucose (mg/dL)
95mg/dL
What it means
0.3471 sits in the borderline band.
Formula
QUICKI = 1 ÷ (log Insulin (μU/mL) + log Glucose (mg/dL))
Both inputs need at least eight hours of fasting. Stress and short sleep alone raise insulin, so the figure moves with the day.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Glucose (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) changes and everything else stays put.
| Glucose (mg/dL) | QUICKI | HOMA-IR | Glucose (mg/dL) (mg/dL) |
|---|---|---|---|
| 47.5 | 0.3876 | 0.94 | 48 |
| 71.3 | 0.3628 | 1.41 | 71 |
| 95 | 0.3471 | 1.88 | 95 |
| 143 | 0.327 | 2.82 | 143 |
| 190 | 0.3143 | 3.75 | 190 |
What each result means
| Result | At default values |
|---|---|
| QUICKIAn index of insulin sensitivity; higher is better. | 0.3471 |
| HOMA-IRAn index of how well insulin works; higher means more resistance. | 1.88 |
| Glucose (mg/dL) (mg/dL)Blood sugar; whether it is fasting or after a meal changes everything. | 95 |
Common mistakes
Both inputs need at least eight hours of fasting. Stress and short sleep alone raise insulin, so the figure moves with the day.
Glossary
- Glucose (mg/dL)
- Blood sugar; whether it is fasting or after a meal changes everything.
- Insulin (μU/mL)
- Fasting insulin concentration.
- QUICKI
- An index of insulin sensitivity; higher is better.
- HOMA-IR
- An index of how well insulin works; higher means more resistance.
Frequently asked questions
Q. How is QUICKI Insulin Sensitivity Index calculated?
QUICKI = 1 ÷ (log Insulin (μU/mL) + log Glucose (mg/dL)) — It uses the same two values as HOMA-IR but takes logarithms to even out the distribution. The direction flips: HOMA-IR is worse when high, QUICKI is better when high, with about 0.357 as the normal reference.
Q. Can you walk through an example?
With Glucose (mg/dL) 95, Insulin (μU/mL) 8, the answer is QUICKI 0.3471.
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) moves the answer to Glucose (mg/dL) 47.5 → QUICKI 0.3876 and Glucose (mg/dL) 190 → QUICKI 0.3143. 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?
Both inputs need at least eight hours of fasting. Stress and short sleep alone raise insulin, so the figure moves with the day.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.