how do i calculate my a1c

The A1C test measures your average blood sugar levels over the past 2-3 months. It is typically performed in a lab or doctor's office, and you cannot calculate it at home. However, you can estimate your A1C using your average blood glucose levels with the following formula:

A1C (%) = (Average Blood Glucose (mg/dL) + 46.7) / 28.7

For example, if your average blood glucose is 154 mg/dL:

A1C = (154 + 46.7) / 28.7 ≈ 7.0%

Here’s a quick reference table:

Average Blood Glucose (mg/dL) Estimated A1C (%)

126 6.0
154 7.0
183 8.0
212 9.0
240 10.0

Note: This is an estimation. For an accurate A1C reading, consult your healthcare provider and get a lab test.