A1c Calculator
Convert between A1c and Estimated Average Glucose
Note: A1c (Hemoglobin A1c) reflects average blood glucose over 2-3 months.
This calculator converts between A1c and estimated average glucose levels.
Converted Value
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Diabetes Control
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Risk Assessment
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Target Range
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A1c and Glucose Reference Ranges
Normal: A1c < 5.7%, Glucose < 100 mg/dL
Prediabetes: A1c 5.7-6.4%, Glucose 100-125 mg/dL
Diabetes: A1c ≥ 6.5%, Glucose ≥ 126 mg/dL
Formula: eAG = (A1c × 28.7) - 46.7 mg/dL
Prediabetes: A1c 5.7-6.4%, Glucose 100-125 mg/dL
Diabetes: A1c ≥ 6.5%, Glucose ≥ 126 mg/dL
Formula: eAG = (A1c × 28.7) - 46.7 mg/dL
Clinical Recommendations
Enter value and click calculate to see recommendations.
Important: This calculator provides estimates based on the ADAG study formula.
Individual variations may occur. Always consult healthcare professionals for diabetes management
and interpretation of laboratory values.