A1C to Glucose Calculator
Convert between A1C (HbA1c) percentage and estimated average glucose (eAG). Based on the ADAG study formula.
Convert A1C / Glucose
Formula
eAG (mg/dL) = 28.7 × A1C − 46.7
Based on the A1C-Derived Average Glucose (ADAG) Study
About A1C
A1C (HbA1c) reflects your average blood sugar over the past 2-3 months. It measures the percentage of hemoglobin that is glycated (sugar-coated).
Results
A1C
6.5%
Avg Glucose
140
mg/dL (7.8 mmol/L)
Diabetes
A1C Categories
Normal<5.7%
Prediabetes5.7% - 6.4%
Diabetes≥6.5%
Reference Table
| A1C (%) | eAG (mg/dL) | eAG (mmol/L) |
|---|---|---|
| 5.0 | 97 | 5.4 |
| 5.5 | 111 | 6.2 |
| 6.0 | 126 | 7.0 |
| 6.5 | 140 | 7.8 |
| 7.0 | 154 | 8.5 |
| 7.5 | 169 | 9.4 |
| 8.0 | 183 | 10.2 |
| 8.5 | 197 | 10.9 |
| 9.0 | 212 | 11.8 |
| 9.5 | 226 | 12.5 |
| 10.0 | 240 | 13.3 |
| 11.0 | 269 | 14.9 |
| 12.0 | 298 | 16.5 |