QUICKI (insulin sensitivity index)
QUICKI quantitative insulin-sensitivity check index from fasting insulin and glucose (mg/dL).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Fasting insulin
- 12 uU/mL
- Fasting glucose
- 100 mg/dL
Result: QUICKI 0.3248 (insulin 12 uU/mL, glucose 100 mg/dL). Lower values indicate lower insulin sensitivity; reference range ~0.45 (healthy) to ~0.30-0.35 (type 2 diabetes), no universal diagnostic cut-point.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- ~0.45
- Healthy insulin sensitivity.
- ~0.30-0.35
- Lower insulin sensitivity (type 2 diabetes range); no universal cut-point.
What you enter
- Fasting insulin
- Fasting glucose
How this is calculated
Katz A, Nambi SS, Mather K, et al. Quantitative insulin sensitivity check index: a simple, accurate method for assessing insulin sensitivity in humans. J Clin Endocrinol Metab. 2000;85(7):2402-2410. QUICKI = 1 / [log10(insulin) + log10(glucose mg/dL)]. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.