1. What is A1C?

A1C (glycated hemoglobin) reflects your average blood glucose levels over the past 2-3 months. It's a crucial marker for diabetes management and diagnosis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( eAG \) — Estimated Average Glucose in mg/dL
• 46.7 and 28.7 — Constants derived from regression analysis

Explanation: This formula provides a linear relationship between average glucose levels and A1C percentage.

3. Importance of A1C Measurement

Details: A1C is used to diagnose prediabetes and diabetes, and to monitor long-term glucose control in diabetic patients.

4. Using the Calculator

Tips: Enter your average glucose level in mg/dL. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal A1C level?
A: Below 5.7% is normal, 5.7%-6.4% indicates prediabetes, and 6.5% or higher suggests diabetes.

Q2: How often should A1C be tested?
A: Diabetics typically every 3 months, prediabetics every 6-12 months, healthy adults every 3 years.

Q3: Can A1C be inaccurate?
A: Yes, conditions like anemia, kidney disease, or recent blood loss can affect A1C accuracy.

Q4: What's the difference between A1C and eAG?
A: A1C shows long-term (3-month) average, while eAG converts this to daily glucose units (mg/dL).

Q5: Should I use this instead of lab testing?
A: No, this calculator provides estimates only. Always consult your doctor for official testing.