What is a normal QUICKI value?

Values ≥ 0.45 are considered normal insulin sensitivity. Values between 0.33 and 0.45 are borderline, and values < 0.33 indicate significant insulin resistance.

What units should I use for glucose?

Enter glucose in mg/dL. If your result is in mmol/L, multiply by 18.016 to convert before entering it here.

What units should I use for insulin?

Enter insulin in µU/mL (micro-units per milliliter), which is the standard unit for fasting serum insulin assays.

How does QUICKI compare to HOMA-IR?

QUICKI and HOMA-IR use the same two inputs but different formulas. QUICKI uses logarithms of both values, which tends to produce a more normal data distribution. Both are surrogate markers — neither replaces the euglycemic hyperinsulinemic clamp as a gold standard.

Does QUICKI require fasting values?

Yes. Both glucose and insulin must be measured after an overnight fast (typically 8–12 hours) for the index to be valid. Random or postprandial values will produce meaningless results.

QUICKI Index Calculator

Name: QUICKI Index Calculator
Availability: InStock
Author: Nham Vu

Enter fasting glucose and fasting insulin to compute your QUICKI score and interpret insulin sensitivity.

Fasting Lab Values

Fasting Glucose (mg/dL)

Normal fasting range: 70–99 mg/dL

Fasting Insulin (µU/mL)

Typical fasting range: 2–25 µU/mL

Result

Enter lab values and click Calculate

Reference Ranges

QUICKI Value	Interpretation	Clinical Significance
≥ 0.45	Normal	Normal insulin sensitivity in healthy individuals
0.33 – 0.45	Borderline	Reduced sensitivity; seen with obesity or prediabetes
< 0.33	Insulin Resistant	Significant insulin resistance; often associated with type 2 diabetes

Reference: Katz A et al. J Clin Endocrinol Metab. 2000;85(7):2402–2410.

Summary

Enter fasting glucose and fasting insulin to compute your QUICKI score and interpret insulin sensitivity.

How it works

Enter your fasting blood glucose in mg/dL.
Enter your fasting serum insulin in µU/mL.
The calculator applies the QUICKI formula: 1 / (log(glucose) + log(insulin)).
The result is interpreted against published reference ranges.
Values ≥ 0.45 are considered normal; values < 0.33 indicate insulin resistance.

Use cases

Screen patients for insulin resistance in a clinical or research setting.
Monitor changes in insulin sensitivity over a diet or exercise program.
Compare insulin sensitivity alongside HOMA-IR for a fuller picture.
Assess metabolic risk in individuals with obesity or prediabetes.
Track response to pharmacological treatment in type 2 diabetes management.

Frequently Asked Questions

Last updated: 2026-07-24 · Reviewed by Nham Vu