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A1c to Blood Sugar Conversion Chart: Understanding Your eAG

04 Sep 2025 by Maria L. Collazo-Clavell, M.D.

A1c to Blood Sugar Conversion Chart: Understanding Your eAG

Understanding your A1c levels is crucial for managing diabetes. While your daily blood sugar readings offer a snapshot in time, A1c provides a broader picture of your average blood sugar levels over the past 2-3 months. This article will explore the A1c to blood sugar conversion, focusing on the Estimated Average Glucose (eAG), and provide a clear A1c conversion chart to help you interpret your results effectively. Can You Reverse Prediabetes A Science Backed Action Plan

What is A1c and Why Is It Important?

A1c, also known as glycated hemoglobin, is a blood test that measures the percentage of your hemoglobin proteins that are coated with glucose. Hemoglobin is a protein in your red blood cells that carries oxygen. The higher your average blood sugar levels, the more glucose will attach to your hemoglobin. The A1c test gives an average of your blood sugars over the last 2-3 months, because red blood cells live for about that long.

Why is A1c important? It's a key indicator of how well your blood sugar is being controlled. Consistently high blood sugar levels can lead to serious long-term complications, including: Your Complete Guide To The Prediabetes A1C Range And How To Reverse It

  • Heart disease
  • Kidney disease
  • Nerve damage (neuropathy)
  • Eye damage (retinopathy)

Therefore, regular A1c testing and understanding your A1c levels are vital for preventing or managing these complications. Your doctor will use the A1c results, in combination with your blood sugar readings, to help determine your treatment plan and monitor its effectiveness.

Introducing Estimated Average Glucose (eAG)

The Estimated Average Glucose (eAG) provides a more relatable interpretation of your A1c result. While A1c is expressed as a percentage, eAG translates that percentage into an estimated average blood sugar level in mg/dL (milligrams per deciliter), the same unit used in daily blood glucose monitoring. This allows you to easily compare your A1c to the blood sugar numbers you are familiar with.

Instead of thinking, "My A1c is 7%", you can think, "My estimated average blood sugar is around 154 mg/dL." This can make it easier to understand the implications of your A1c and stay motivated to manage your blood sugar.

A1c to Blood Sugar Conversion Chart (eAG)

Here's a handy A1c to blood sugar conversion chart showing the relationship between A1c percentage and eAG (mg/dL):

A1c (%) Estimated Average Glucose (eAG) mg/dL Estimated Average Glucose (eAG) mmol/L
6.0 126 7.0
6.5 140 7.8
7.0 154 8.6
7.5 169 9.4
8.0 183 10.2
8.5 197 10.9
9.0 212 11.8
9.5 226 12.6
10.0 240 13.4
10.5 255 14.2
11.0 269 14.9
11.5 283 15.7
12.0 298 16.5

Note: These values are estimations. Individual results may vary.

Interpreting Your A1c Results and Setting Goals

The American Diabetes Association (ADA) generally recommends an A1c goal of less than 7% for most adults with diabetes. However, your individual target A1c may vary based on your age, overall health, other medical conditions, and risk of hypoglycemia (low blood sugar). Always discuss your target A1c with your healthcare provider.

Here's a general guideline for interpreting your A1c results:

  • Normal: Less than 5.7%
  • Prediabetes: 5.7% to 6.4%
  • Diabetes: 6.5% or higher

If your A1c is above your target, work with your doctor or diabetes educator to adjust your treatment plan. This may involve changes to your diet, exercise routine, medication regimen, or a combination of these.

Factors That Can Affect A1c Results

While A1c is generally reliable, certain conditions can affect the accuracy of the results:

  • Anemia: Conditions that affect red blood cell production can artificially lower or raise A1c levels.
  • Hemoglobinopathies: Certain genetic conditions affecting hemoglobin, such as sickle cell anemia, can interfere with A1c testing.
  • Kidney disease: Kidney disease can affect the lifespan of red blood cells.
  • Pregnancy: A1c levels may be slightly lower during pregnancy.

If you have any of these conditions, discuss them with your doctor, as they may require alternative methods for monitoring blood sugar control. Decoding Your Blood Sugar Levels Fasting Postprandial Amp Random Ranges

Tips for Lowering Your A1c

If your A1c is above your target range, these strategies can help you lower it:

  1. Follow a healthy diet: Focus on whole, unprocessed foods, including plenty of fruits, vegetables, and whole grains. Limit sugary drinks, processed foods, and saturated and trans fats.
  2. Engage in regular physical activity: Aim for at least 150 minutes of moderate-intensity exercise per week.
  3. Monitor your blood sugar regularly: Regular monitoring helps you understand how your blood sugar responds to food, exercise, and medication.
  4. Take your medications as prescribed: Adhere to your medication regimen and communicate with your doctor about any side effects or concerns.
  5. Manage stress: Stress can raise blood sugar levels. Practice stress-reducing techniques such as meditation, yoga, or spending time in nature.
  6. Get enough sleep: Lack of sleep can negatively impact blood sugar control. Aim for 7-8 hours of quality sleep per night.
  7. Work with a diabetes educator: A diabetes educator can provide personalized guidance on managing your diabetes and lowering your A1c.

Conclusion

Understanding the A1c to blood sugar conversion, specifically through the Estimated Average Glucose (eAG), can empower you to better manage your diabetes. By using the A1c conversion chart and working closely with your healthcare team, you can set realistic goals, track your progress, and take proactive steps to maintain healthy blood sugar levels. Remember, consistency and proactive management are key to preventing long-term complications and living a healthy, fulfilling life with diabetes. Don't hesitate to ask your doctor or diabetes educator any questions you have about your A1c results and what they mean for your overall health.

References and Further Reading