A1c to Blood Sugar Conversion Chart: Understand Your eAG

23 Aug 2025

A1c to Blood Sugar Conversion Chart: Understand Your eAG Understanding your blood sugar levels is critical for managing diabetes effectively. While bl...

A1c to Blood Sugar Conversion Chart: Understand Your eAG

Understanding your blood sugar levels is critical for managing diabetes effectively. While blood sugar readings give you a snapshot in time, your A1c provides a more comprehensive view of your average blood sugar control over the past 2-3 months. This article dives deep into the A1c to blood sugar conversion chart, explaining how to interpret your A1c results and understand your estimated Average Glucose (eAG).

What is A1c?

The A1c test, also known as the hemoglobin A1c or HbA1c test, measures the percentage of your red blood cells that have glucose attached to them. Glucose binds to hemoglobin (the protein in red blood cells that carries oxygen). The higher your blood sugar levels over time, the more glucose binds to your hemoglobin. Since red blood cells live for about three months, the A1c test provides a good indication of your average blood sugar levels over that period. This is more helpful than just daily finger prick blood sugar readings, as those are just point-in-time measurements.

Why is understanding A1c important? Because consistent high blood sugar levels can lead to serious long-term complications, including nerve damage (neuropathy), kidney damage (nephropathy), eye damage (retinopathy), and cardiovascular disease.

The A1c to eAG Conversion Chart

The A1c result is given as a percentage, while your average blood sugar is usually measured in milligrams per deciliter (mg/dL) or millimoles per liter (mmol/L). The A1c to eAG (estimated Average Glucose) conversion chart helps you translate your A1c percentage into an equivalent average blood sugar level. Here’s a commonly used chart:

Related reading: Fasting Blood Sugar Vs Postprandial Understanding Your Glucose Test Results

A1c (%) eAG (mg/dL) eAG (mmol/L)
6.0% 126 mg/dL 7.0 mmol/L
6.5% 140 mg/dL 7.8 mmol/L
7.0% 154 mg/dL 8.6 mmol/L
7.5% 169 mg/dL 9.4 mmol/L
8.0% 183 mg/dL 10.2 mmol/L
8.5% 197 mg/dL 11.0 mmol/L
9.0% 212 mg/dL 11.8 mmol/L
9.5% 226 mg/dL 12.6 mmol/L
10.0% 240 mg/dL 13.4 mmol/L
10.5% 255 mg/dL 14.2 mmol/L
11.0% 269 mg/dL 15.0 mmol/L
11.5% 283 mg/dL 15.8 mmol/L
12.0% 298 mg/dL 16.6 mmol/L

Related reading: The 12 Best Foods To Control Blood Sugar And Prevent Spikes

Important Note: This chart provides an estimated average glucose level. Individual results may vary. Always discuss your A1c results and diabetes management plan with your healthcare provider.

What is a Target A1c?

The target A1c level for most people with diabetes is generally below 7.0%. However, the specific target may vary depending on individual factors such as age, other health conditions, and the risk of hypoglycemia (low blood sugar). Some individuals, like older adults or those with a history of severe hypoglycemia, might have a higher target A1c. Pregnant women with diabetes often have even stricter target levels. It’s crucial to work with your doctor to determine the most appropriate target A1c for you.

Factors That Can Affect A1c Results

Several factors besides your average blood sugar levels can affect your A1c results, including:

  • Anemia: Certain types of anemia can falsely lower A1c results.
  • Hemoglobinopathies: Conditions like sickle cell anemia can interfere with A1c measurement.
  • Kidney Disease: Chronic kidney disease can affect A1c levels.
  • Ethnicity: Some studies suggest that A1c levels may vary slightly among different ethnic groups.
  • Pregnancy: Can affect A1c readings.

If you have any of these conditions, your doctor may use other tests, such as fructosamine or glycated albumin, to assess your blood sugar control.

How to Lower Your A1c

Lowering your A1c typically involves a combination of lifestyle changes and, in some cases, medication. Here are some effective strategies:

  • Diet: Follow a healthy eating plan that includes plenty of fruits, vegetables, and whole grains. Limit processed foods, sugary drinks, and saturated fats. Consider working with a registered dietitian or certified diabetes educator to create a personalized meal plan.
  • Exercise: Engage in regular physical activity, such as brisk walking, swimming, or cycling. Aim for at least 150 minutes of moderate-intensity exercise per week.
  • Medication: If lifestyle changes are not enough to reach your target A1c, your doctor may prescribe medications to help lower your blood sugar. These may include oral medications or insulin.
  • Regular Monitoring: Check your blood sugar levels regularly, as recommended by your doctor. This will help you understand how your blood sugar responds to different foods, activities, and medications.
  • Stress Management: Practice stress-reduction techniques, such as yoga, meditation, or deep breathing exercises. Stress can raise blood sugar levels.
  • Sleep Hygiene: Ensure you get adequate and quality sleep. Poor sleep can negatively impact blood sugar control.

When to Check Your A1c

The American Diabetes Association (ADA) recommends that most people with diabetes get an A1c test at least twice a year. If your blood sugar is well-controlled and your A1c is consistently within the target range, you may only need to be tested once a year. However, if your diabetes treatment plan has changed, or if your blood sugar is not well-controlled, you may need to be tested more frequently, such as every three months. Your healthcare provider will determine the appropriate testing frequency based on your individual needs.

Related reading: Hyperglycemia Vs Hypoglycemia Know The Signs And How To Respond

Beyond the Numbers: A Holistic Approach

While the A1c to blood sugar conversion chart is a helpful tool, remember that it’s just one piece of the puzzle. Effective diabetes management requires a holistic approach that includes regular monitoring, healthy lifestyle choices, and close collaboration with your healthcare team. Focus not just on the numbers, but on the overall quality of your life and well-being. By taking a proactive and informed approach, you can successfully manage your diabetes and live a healthy, fulfilling life. Understanding your A1c and eAG is a significant step in that journey.