A1C (glycated hemoglobin) reflects the average blood glucose levels over approximately 3 months. It's measured as a percentage of hemoglobin that is coated with sugar.

How to convert A1C to average glucose (eAG)?

eAG (mg/dL) = 28.7 × A1C(%) − 46.7. For example, an A1C of 7% equals approximately 154 mg/dL average glucose.

What are normal A1C ranges?

Normal: <5.7% | Prediabetes: 5.7-6.4% | Diabetes: ≥6.5%. These are ADA guidelines. Consult your healthcare provider for personalized targets.

Back to Home

Contact Us

Q: What are normal A1C ranges?

Normal: <5.7% | Prediabetes: 5.7-6.4% | Diabetes: ≥6.5%. These are ADA guidelines. Consult your healthcare provider for personalized targets.

General Inquiries

For general questions about the calculator

We welcome your questions and feedback about the A1C Calculator. Please note that we cannot provide medical advice or interpret individual results.

info@a1c-calculator.com

Technical Support

Report bugs or technical issues

Found a bug or having technical difficulties? Let us know so we can help and improve the calculator for everyone.

support@a1c-calculator.com

Developer Resources

API access and integration support

Looking to integrate our calculator into your application? Check out our API documentation or reach out for help.

Widget Documentation →
developers@a1c-calculator.com

Social Media

Stay connected for calculator updates, diabetes education content, and health tips.

GitHub
Twitter

Important Notes

Medical Disclaimer: We cannot provide medical advice, diagnose conditions, or interpret individual test results. Please consult with healthcare professionals for medical questions.

Response Time: We typically respond to inquiries within 2-3 business days. For urgent technical issues affecting calculator functionality, we'll prioritize your request.

Feedback Welcome: Your suggestions help us improve! Whether it's a feature request, usability feedback, or content suggestion, we value your input.