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A1C Calculator

Convert between A1C percentage and estimated Average Glucose (eAG). Understand your diabetes risk levels.

Blood Sugar Info

Enter your A1C or average blood glucose

Result
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A1C Reference Ranges

Normal
Below 5.7%
eAG < 117 mg/dL
Prediabetes
5.7%–6.4%
eAG 117–137 mg/dL
Diabetes
6.5% and above
eAG ≥ 140 mg/dL
Target (Diabetic)
Below 7.0%
ADA recommendation