HbA1c Calculator
NEWConvert your HbA1c percentage to Estimated Average Glucose (eAG) in both mg/dL and mmol/L automatically.
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How to use
- 1Enter your HbA1c percentage (e.g. 6.5)
- 2The tool instantly outputs your Estimated Average Glucose (eAG)
- 3View results in both mg/dL (US standard) and mmol/L (International scale)
Frequently Asked Questions — HbA1c Calculator
What is HbA1c?+
Hemoglobin A1C (HbA1c) is a blood test that measures your average blood sugar levels over the past 2 to 3 months. It is used to diagnose prediabetes and diabetes, and to help manage the conditions.
What is the difference between A1C and eAG?+
A1C is reported as a percentage (like 7.0%), while eAG (Estimated Average Glucose) converts that percentage into the same numbers (mg/dL or mmol/L) you see on a daily blood sugar meter. This makes it easier to relate A1C to your daily monitoring.
What is a normal A1C level?+
A normal A1C level is below 5.7%. Levels between 5.7% and 6.4% indicate prediabetes, while an A1C of 6.5% or higher on two separate tests indicates diabetes.