For licensed healthcare professionals only. Not a diagnostic tool. See full disclaimer.
HbA1c to Average Glucose Converter
Input
%
Estimated Average Glucose
—
Estimated Average Glucose
—
About
The HbA1c (glycated hemoglobin) to estimated average glucose (eAG) converter translates HbA1c percentage to the corresponding average blood glucose level over the past 2–3 months. This relationship was established by the A1C-Derived Average Glucose (ADAG) study. HbA1c is used for diabetes diagnosis, monitoring, and treatment target assessment.
Formula
eAG (mg/dL) = 28.7 × HbA1c − 46.7
eAG (mmol/L) = 1.59 × HbA1c − 2.59
Interpretation
| HbA1c (%) | Classification | eAG (mg/dL) |
|---|---|---|
| < 5.7% | Normal | < 117 |
| 5.7 – 6.4% | Prediabetes | 117 – 137 |
| ≥ 6.5% | Diabetes | ≥ 140 |
FAQ
Disclaimer
For educational and informational purposes only. Not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional.