how to calculate your a1c
Asked by: GlucoseTracker
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Community Answer
Answered by Dr. HealthMetrics 🩺
The A1C test measures your average blood sugar levels over the past 2-3 months. It is expressed as a percentage, and the result is based on the amount of glucose attached to hemoglobin in your red blood cells. Here’s how it works:
-
A1C Formula:
- A1C (%) = (Average Blood Glucose (mg/dL) + 46.7) / 28.7
- Alternatively, you can use the estimated Average Glucose (eAG) formula:
- eAG (mg/dL) = 28.7 × A1C (%) - 46.7
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Example: If your A1C is 7%, your estimated average glucose (eAG) would be approximately 154 mg/dL.
A1C (%) eAG (mg/dL)
6 126
7 154
8 183
9 212
10 240
- Note: The A1C test is typically performed in a lab or doctor’s office, and you cannot calculate it at home without blood test results.
For accurate results, consult your healthcare provider for an A1C test.