Blood Glucose to A1C Converter
Blood Glucose to A1C
Convert average blood glucose (mg/dL) to estimated A1C
mg/dL
A1C to Blood Glucose
Convert A1C percentage to estimated average glucose
%
A1C Target Assessment
Check if your A1C meets recommended targets
%
Formula
A1C = (Average Glucose mg/dL + 46.7) / 28.7 | eAG = (28.7 x A1C) - 46.7 mg/dL
Frequently Asked Questions
What A1C level is considered diabetic?
An A1C of 6.5% or higher on two separate tests indicates diabetes. A1C of 5.7-6.4% indicates prediabetes. Below 5.7% is considered normal. These thresholds are established by the American Diabetes Association.
How is A1C related to average blood sugar?
A1C measures the percentage of hemoglobin with attached glucose, reflecting a 2-3 month average. An A1C of 7% corresponds to an average glucose of about 154 mg/dL. Each 1% change in A1C represents approximately 29 mg/dL change in average glucose.
Can A1C be inaccurate?
Yes. Conditions affecting red blood cells can alter A1C accuracy, including iron-deficiency anemia, sickle cell disease, thalassemia, recent blood loss or transfusion, and kidney disease. Certain hemoglobin variants can also interfere. In these cases, fructosamine or CGM may be better alternatives.
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