A1C Conversion Chart: From Percentage to mg/dL or mmol/L
Understanding your A1C levels is crucial for managing your blood sugar. However, the metric can be confusing, especially when trying to compare it with blood glucose levels in mg/dL or mmol/L. This conversion chart will help you interpret your A1C percentage in a way that's easily comparable to your blood glucose readings.
The A1C test measures the average blood glucose levels over the past 2-3 months. It's calculated using the percentage of glucose molecules that are attached to hemoglobin in your red blood cells. To convert your A1C percentage to blood glucose levels in mg/dL, you can use the following chart:
| A1C Percentage | Blood Glucose (mg/dL) | Blood Glucose (mmol/L) | | --- | --- | --- | | 5.0% | 83 | 4.6 | | 5.5% | 97 | 5.4 | | 6.0% | 114 | 6.3 | | 6.5% | 132 | 7.3 | | 7.0% | 152 | 8.5 | | 7.5% | 174 | 9.7 | | 8.0% | 200 | 11.1 | | 8.5% | 228 | 12.7 | | 9.0% | 258 | 14.4 |
For example, if your A1C level is 7.0%, your average blood glucose level is approximately 152 mg/dL (or 8.5 mmol/L). This chart can be useful when communicating with your healthcare provider about your blood glucose control or when tracking your progress over time.

Keep in mind that this chart is only a conversion tool and doesn't replace the actual A1C test. Your healthcare provider will still need to measure your A1C levels regularly to get an accurate picture of your blood glucose control.