A1C Blood Sugar Calculator
Conversion tool for HbA1c and average blood glucose
Input Values
4–20%
Calculation Results
Please enter valid values to see results
A1C Reference Ranges
Normal
< 5.7%
Good blood sugar control
Prediabetes
5.7% - 6.4%
Lifestyle changes needed
Diabetes
≥ 6.5%
Medical intervention required
Important Notice: This calculator is for reference only and cannot replace professional medical advice. If you have questions, please consult healthcare professionals. A1C testing should be performed every 3-6 months to monitor long-term blood glucose control.