A1C Calculator — Estimated Average Glucose
The A1C Calculator converts your HbA1c percentage (a 3-month average blood sugar measurement) into estimated average glucose (eAG) — the same units your glucometer displays. This conversion helps you understand what your A1C result means in practical, everyday blood sugar terms. An A1C below 5.7% is normal; 5.7–6.4% indicates prediabetes; 6.5%+ indicates diabetes.
Frequently Asked Questions
HbA1c (glycated hemoglobin) measures the percentage of hemoglobin coated with sugar over the past 2–3 months. It reflects your average blood glucose better than a single reading.