Calculate My A1C
Estimate your 3-month average blood sugar level
Your Estimated A1C:
–%
ADA Guidelines:
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
Note: This calculator estimates your A1C based on the ADAG formula: A1C = (46.7 + average glucose in mg/dL) ÷ 28.7
The American Diabetes Association recommends most adults with diabetes maintain an A1C below 7%, but individual targets may vary based on your healthcare provider’s recommendations.