what hemoglobin a1c is diabetes

The hemoglobin A1C (HbA1c) test is used to diagnose diabetes. The following ranges are used for diagnosis:

• Normal: Below 5.7%
• Prediabetes: 5.7% to 6.4%
• Diabetes: 6.5% or above

If your A1C level is 6.5% or higher, it indicates diabetes. This test measures your average blood sugar levels over the past 2-3 months, providing a more comprehensive picture than a single blood sugar reading.

For more information, you can refer to the CDC's guide on A1C testing.