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How to Use HbA1c Converter

Convert HbA1c between percent (NGSP/DCCT) and mmol/mol (IFCC), and to estimated average glucose (eAG) in mg/dL and mmol/L, with a reference table.

About this tool

Convert HbA1c between %, mmol/mol and estimated average glucose.

How to use HbA1c Converter

  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.

Worked example

An HbA1c of 7.0% equals 53 mmol/mol and an estimated average glucose of 154 mg/dL (8.6 mmol/L).

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.

Put this guide into practice

  • HbA1c Converter — Convert HbA1c between %, mmol/mol and estimated average glucose.

References

Explore Medical & Clinical Tools · More practical guides

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