A1C Calculator
Convert between A1C and average blood glucose levels. A1C measures your average blood sugar over the past 2-3 months and is used to diagnose and monitor diabetes.
Disclaimer: This calculator provides estimates for educational purposes only. Always consult with your healthcare provider for diagnosis and treatment of diabetes.
Enter a value to see your A1C or glucose estimate
| A1C (%) | Avg Glucose (mg/dL) | Category |
|---|---|---|
| 4.0 | 68 | Normal |
| 5.0 | 97 | Normal |
| 5.7 | 117 | Prediabetes |
| 6.0 | 126 | Prediabetes |
| 6.5 | 140 | Diabetes |
| 7.0 | 154 | Diabetes |
| 8.0 | 183 | Diabetes |
What is A1C?
A1C (also called HbA1c or glycated hemoglobin) measures the percentage of your red blood cells with sugar-coated hemoglobin. It reflects your average blood sugar over 2-3 months.
How often should I test A1C?
For people with diabetes, the American Diabetes Association recommends testing A1C at least twice a year if well-controlled, or quarterly if treatment changes or goals are not met.
What is a good A1C target?
For most adults with diabetes, a target A1C below 7% is recommended. However, targets may vary based on individual circumstances. Consult your healthcare provider.