Average Blood Sugar Calculated From The Hba1c

eAG Formula:

\[ eAG (mg/dL) = 28.7 \times HbA1c (\%) - 46.7 \]

Estimated Average Glucose (eAG):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is eAG?

Estimated Average Glucose (eAG) is a calculated value that represents your average blood sugar level over the past 2-3 months. It's derived from your HbA1c test results and provides the average glucose level in the same units (mg/dL) as your daily glucose measurements.

2. How Does the Calculator Work?

The calculator uses the eAG formula:

\[ eAG (mg/dL) = 28.7 \times HbA1c (\%) - 46.7 \]

Where:

\( HbA1c \) — Glycated hemoglobin percentage
28.7 — Conversion coefficient
46.7 — Adjustment factor

Explanation: This linear equation converts HbA1c percentage to estimated average glucose in mg/dL, providing a more intuitive understanding of average blood glucose levels.

3. Importance of eAG Calculation

Details: eAG helps patients and healthcare providers better understand what HbA1c results mean in terms of daily glucose measurements. It bridges the gap between long-term glycemic control (HbA1c) and day-to-day glucose monitoring.

4. Using the Calculator

Tips: Enter your HbA1c percentage value. The calculator will provide the estimated average glucose in mg/dL. Valid HbA1c values are typically between 4-14%.

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: eAG provides the average glucose level in familiar units (mg/dL) that patients use with their glucose meters, making HbA1c results more meaningful and easier to understand.

Q2: What are normal eAG values?
A: For non-diabetic individuals, eAG is typically 70-126 mg/dL, corresponding to HbA1c of 4-6%. Diabetes management targets vary but often aim for eAG below 154 mg/dL (HbA1c < 7%).

Q3: How accurate is the eAG calculation?
A: The formula provides a good estimate for most people, but individual variations in red blood cell lifespan and other factors can affect the relationship between HbA1c and average glucose.

Q4: Can eAG replace daily glucose monitoring?
A: No, eAG provides an average but doesn't show glucose variability. Daily monitoring is still essential for detecting highs and lows and making treatment adjustments.

Q5: Are there different conversion formulas?
A: Yes, different organizations may use slightly different coefficients, but 28.7 × HbA1c - 46.7 is widely accepted and used in clinical practice.