Estimated Average Glucose (eAG)

Estimated Average Glucose (eAG), a new way to understand how you're managing your diabetes

eAG is directly related to A1C, but uses the same values and units that you observe when you check your blood glucose with a meter or receive a fasting glucose value on a lab report.

An A1C of 7% — the goal for most people with diabetes—is the equivalent of an eAG of 154 mg/dl.

Though eAG and A1C represent the same thing—the average level of glucose in the body over time—for many patients, it may be helpful to begin thinking about their diabetes control in terms of eAG. First, it's simple: with eAG you use the same units you're familiar with from self-monitoring. Second, understanding the relationship between eAG and the values you get in self-monitoring may help you understand how your daily blood glucose checks relate to your long-term control.

Using eAG may help facilitate a better understanding of actual daily control – helping you and your health care provider to make necessary changes to your diet and physical activity to improve overall diabetes management.

A1C to eAG Conversion Chart

This table shows the relationship between A1C and estimated average glucose.

A1C %	eAG mg/dl
6	126
6.5	140
7	154
7.5	169
8	183
8.5	197
9	212
9.5	226
10	240

The relationship between A1C and eAG is described by the formula 28.7 X A1C – 46.7 = eAG.

Dr Marwah