Blood Sugar → A1C

Estimate an approximate A1C from your average glucose.

Average glucose (mg/dL)

Educational estimate only — not a diagnosis. Values are calculated in your browser and never stored. Discuss your results with a licensed clinician.

Frequently asked questions

Can I replace a lab A1C with this estimate?

No. This is an educational estimate from your average glucose; a lab A1C measured from blood is the accurate value your doctor uses.

What average glucose should I use?

Use the average of many readings across different times of day for the best estimate — a single reading isn't representative.

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