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A1C Calculator

Convert between A1C and average blood glucose.

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A1C Calculator
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Frequently Asked Questions

A1C (glycated hemoglobin) measures average blood sugar over 2-3 months. It shows what percentage of hemoglobin has sugar attached.

Normal: below 5.7%. Prediabetes: 5.7-6.4%. Diabetes: 6.5% or higher. Target for diabetics is often below 7%.

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