A1C Calculator

HbA1c to Average Blood Sugar Converter

🆓 Free to use

Enter HbA1c Value

HbA1c (%)

Blood Sugar Unit

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What is HbA1c?

HbA1c (glycated hemoglobin) reflects average blood sugar over the past 2-3 months. Normal: below 5.7%, Prediabetes: 5.7%-6.4%, Diabetes: ≥6.5%.

What is eAG?

eAG (estimated Average Glucose) converts HbA1c percentage to daily blood sugar monitoring units. Formula: eAG(mg/dL) = 28.7 × A1C - 46.7.

Enter HbA1c Value

Enter your HbA1c percentage value

Select Blood Sugar Unit

Choose mg/dL or mmol/L

View Calculation Results

View estimated average glucose and blood sugar control level assessment