Estimated Average Glucose (eAG)
Converts HbA1c into an estimated average blood glucose.
What is Estimated Average Glucose (eAG)?
Converts HbA1c into an estimated average blood glucose. Estimated Average Glucose is intended for use in: Adults.
How to Use the Estimated Average Glucose Calculator
- Enter HbA1c in %.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- Derived from a mostly adult, mostly non-pregnant population — less accurate in pregnancy, hemoglobinopathies, or conditions that affect red cell turnover.
References
- Nathan DM et al. (ADAG Study Group), Diabetes Care 2008;31:1473-1478
Frequently Asked Questions
What is Estimated Average Glucose (eAG)?
Converts HbA1c into an estimated average blood glucose.
Who is Estimated Average Glucose intended for?
Adults. Always confirm applicability to your specific patient before use.
What are the limitations of Estimated Average Glucose?
Derived from a mostly adult, mostly non-pregnant population — less accurate in pregnancy, hemoglobinopathies, or conditions that affect red cell turnover.
What formula or reference does Estimated Average Glucose use?
Nathan DM et al. (ADAG Study Group), Diabetes Care 2008;31:1473-1478
Is Estimated Average Glucose a diagnosis?
No. Estimated Average Glucose produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.
