Hemoglobin A1C Calculator

Calculate estimated average glucose from HbA1c. Convert between HbA1c percentage and eAG (estimated average glucose) in mg/dL or mmol/L.

HbA1c Information

Results

Enter HbA1c to calculate estimated average glucose

About HbA1c

  • • eAG (mg/dL) = 28.7 × HbA1c - 46.7
  • • Normal: <5.7%
  • • Prediabetes: 5.7-6.4%
  • • Diabetes: ≥6.5%
  • • Target: <7.0% (most patients)