eAG to A1C Calculator

Category: Diabetes
- May 12, 2025
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Convert between estimated Average Glucose (eAG) and Haemoglobin A1C values. This calculator helps patients and healthcare providers translate between blood glucose measurements.

Conversion Calculator

Display Options

About A1C and eAG

Haemoglobin A1C (HbA1c) is a measure of a person's average blood glucose levels over the past 2-3 months. Estimated Average Glucose (eAG) is a way to translate A1C results into the same units used for daily blood glucose monitoring.

Understanding the Units
  • A1C: Measured as a percentage representing the amount of haemoglobin with glucose attached.
  • eAG: Can be expressed as mg/dL (used in the US) or mmol/L (used internationally).
  • Conversion: 1 mmol/L = 18 mg/dL
Common Target Ranges
  • Non-diabetic: A1C below 5.7% (eAG below 117 mg/dL or 6.5 mmol/L)
  • Prediabetes: A1C 5.7-6.4% (eAG 117-140 mg/dL or 6.5-7.8 mmol/L)
  • Diabetes: A1C 6.5% or higher (eAG 140 mg/dL or higher, or 7.8 mmol/L or higher)
  • Target for many adults with diabetes: A1C below 7.0% (eAG below 154 mg/dL or 8.6 mmol/L)
Important Notes
  • Individual target ranges should be determined by healthcare providers.
  • The correlation between A1C and eAG can vary slightly between individuals.
  • Certain medical conditions can affect the accuracy of A1C measurements (e.g., haemoglobinopathies, anaemia, recent blood loss).
  • This calculator uses the formula derived from the ADAG study published in 2008.

What is the eAG to A1C Calculator?

The eAG to A1C Calculator is a helpful tool designed to convert between Estimated Average Glucose (eAG) and Hemoglobin A1C values. This can be really useful for patients and healthcare professionals. By translating blood glucose readings into familiar measures, it helps individuals better understand their Diabetes management. Whether you are tracking your blood glucose levels or simply curious about your A1C, this calculator makes the process straightforward.

How Does the Calculator Work?

This calculator allows users to choose between two types of conversions: eAG to A1C and A1C to eAG. Once a user selects the conversion type, they can input either the eAG or A1C value. After entering the data, the calculator instantly provides the respective conversion result. This simple design ensures that anyone can use it without needing extensive knowledge of medical conversions.

Understanding eAG and A1C

To effectively use this calculator, it's essential to understand what eAG and A1C are. Here’s a quick breakdown:

  • A1C: This measures the average blood glucose levels over the past 2-3 months, reported as a percentage.
  • eAG: This is a way of expressing A1C levels in the same units as daily blood glucose levels, typically measured in mg/dL or mmol/L.
  • Conversion: One mmol/L equals 18 mg/dL, which is a crucial point for interpretation.

Why Use This Calculator?

Using the eAG to A1C Calculator can simplify diabetes management in several ways. Here are some of the benefits:

  • It helps you understand your blood glucose levels better.
  • You can quickly see how your daily readings translate into A1C values.
  • It aids in tracking your diabetes control over time.

Display Options for Personalisation

The calculator includes display options so you can tailor it to your needs. You can choose how many decimal places to show in the results. This feature helps you get the level of precision that's most useful for you. Additionally, you can opt to display the conversion formula, which can deepen your understanding of how the numbers relate to each Other.

Result Interpretation

After you use the calculator, it will show you the conversion results clearly. Whether you're looking for your A1C percentage or your eAG in mg/dL, the results are easy to read. Understanding these results is crucial for managing your Health, as they can help guide treatment decisions and lifestyle changes.

Common A1C and eAG Levels

Knowing the typical ranges for A1C and eAG can provide context for your results. Here are some common targets:

  • Non-diabetic: A1C below 5.7% (eAG below 117 mg/dL)
  • Prediabetes: A1C 5.7-6.4% (eAG 117-140 mg/dL)
  • Diabetes: A1C 6.5% and above (eAG 140 mg/dL and higher)

Final Thoughts on the Calculator

The eAG to A1C Calculator is a valuable resource for anyone interested in managing their diabetes more effectively. Whether you're a patient or a healthcare professional, this tool simplifies complex conversions. By understanding how eAG and A1C relate to each other, you can make better-informed decisions about your health.