HbA1c Converter
Convert HbA1c between %, mmol/mol and estimated average glucose.
Enter your values to see the result.
IFCC (mmol/mol) = 10.929 × (NGSP % − 2.15). Estimated average glucose (eAG) = 28.7 × A1c − 46.7 mg/dL from the ADAG study. A1c can mislead with anemia, hemoglobin variants or recent transfusion.
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- Blood Glucose Converter — Convert individual glucose readings.
- Medical Lab Unit Converter — Convert other lab tests.
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How to use the HbA1c Converter
Convert HbA1c between %, mmol/mol and estimated average glucose.
- 1 Choose what you have: HbA1c % or mmol/mol, or average glucose.
- 2 Enter the value.
- 3 Read the other units and the diabetes category.
Example and practical tips
An HbA1c of 7.0% equals 53 mmol/mol and an estimated average glucose of 154 mg/dL (8.6 mmol/L).
Further reading
Frequently asked questions
What HbA1c means diabetes?
6.5% (48 mmol/mol) or higher on two tests. 5.7–6.4% (39–47 mmol/mol) indicates prediabetes.
When is HbA1c misleading?
With anemia, hemoglobin variants, pregnancy, recent blood loss or transfusion, and advanced kidney disease.
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