A1C Calculator
Use this free A1C calculator to convert between A1C percentage and estimated average glucose (eAG) in mg/dL or mmol/L. Enter your hemoglobin A1C value to see your average blood glucose level, or enter an eAG reading to calculate your estimated A1C. Results include a color-coded risk badge showing whether your level falls in the Normal, Prediabetes, or Diabetes range.