This A1C to estimated average glucose (eAG) calculator helps you quickly convert Hemoglobin A1C percentages into average blood sugar levels in mg/dL or mmol/L. The calculation is based on the American Diabetes Association (ADA) recommended formula, allowing you to better understand how your three-month blood glucose average translates into daily glucose values.
- If your A1C level is between 5.7 and less than 6.5%, your levels have been in the prediabetes range.
- If you have an A1C level of 6.5% or higher, your levels were in the diabetes range.
Whether you are monitoring diabetes, prediabetes, or general metabolic health, this tool provides instant and accurate results for better health awareness.
A1C to Estimated Average Glucose (eAG) Calculator
Convert between Hemoglobin A1C (%) and Estimated Average Glucose (mg/dL or mmol/L) using ADA recommended formulas.
How This Is Calculated
Formula Used:
eAG (mg/dL) = (28.7 × A1C) − 46.7
A1C (%) = (eAG + 46.7) ÷ 28.7
Based on American Diabetes Association (ADA) recommendations.
Disclaimer: This calculator is for educational purposes only and does not replace professional medical advice. Always consult a healthcare provider for diagnosis or treatment decisions.
Frequently Asked Questions
What is A1C?
Hemoglobin A1C is a blood test that measures your average blood sugar levels over the past 2–3 months.
What is a normal A1C level?
A normal A1C is below 5.7%.
5.7% to 6.4% indicates prediabetes.
6.5% or higher may indicate diabetes.
How is estimated average glucose (eAG) calculated?
eAG is calculated using the formula:
eAG (mg/dL) = (28.7 × A1C) − 46.7
Why convert A1C to average glucose?
Many people understand daily glucose readings better than percentages. Converting A1C into eAG makes results easier to interpret.
Is this calculator medically accurate?
The formula used in this calculator follows American Diabetes Association recommendations. However, always consult a healthcare professional for medical advice.
