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.

Privacy Policy | A1C Calculator

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.

Last updated: January 2024

Our Commitment to Privacy

A1C Calculator is committed to protecting your privacy. This policy explains how we handle information when you use our calculator and related services.

Information Collection

What We Don't Collect

We do not collect any personal health information
We do not store calculator inputs or results
We do not require user registration or login
We do not use cookies for tracking

What We May Collect

Anonymous Analytics: We use privacy-focused analytics to understand general usage patterns (pages visited, features used, general geographic region)
Technical Information: Basic technical data like browser type and device type to ensure compatibility

Data Processing

All calculations are performed locally in your browser. No health data is transmitted to our servers. When you use features like:

CSV Upload: Files are processed entirely in your browser
API Calls: Only contain the calculation parameters, not personal information
Print/PDF: Generated locally on your device

Third-Party Services

We use minimal third-party services:

Vercel: For hosting (see Vercel's privacy policy)
Vercel Analytics: For anonymous usage statistics

Data Security

Since we don't collect personal health information, there's no risk of your medical data being breached. All calculations happen on your device, and we use HTTPS encryption for all communications.

Your Rights

Since we don't collect personal information, there's no personal data to request, modify, or delete. You can:

Use the calculator without providing any personal information
Clear your browser cache to remove any locally stored preferences
Use private/incognito browsing for additional privacy

Children's Privacy

Our calculator is a general educational tool and does not knowingly collect information from children under 13. The tool should be used under appropriate medical supervision.

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be posted on this page with an updated revision date.

Contact Us

If you have questions about this privacy policy, please contact us through ourcontact page.

Compliance

We design our services to comply with applicable privacy laws including:

GDPR (General Data Protection Regulation)
CCPA (California Consumer Privacy Act)
HIPAA (we are not a covered entity, but we follow best practices)