a1c calculator

Blood sugar converter

A1c Calculator

Convert between HbA1c percentage and estimated average glucose (eAG) to understand your blood sugar control over time.

Hemoglobin A1c (%)

Enter your HbA1c as a percentage (e.g., 7.0)

Hemoglobin A1c

IFCC: 53 mmol/mol

Estimated Average Glucose

154.2 mg/dL

8.6 mmol/L

Diabetes range

An A1c of 6.5% or higher typically indicates diabetes. Please consult your healthcare provider for appropriate management.

The eAG formula uses the ADAG relationship between A1c and average glucose levels.

eAG (mg/dL) = (28.7 × A1c) − 46.7

eAG provides an estimate of average blood sugar that is easier to relate to daily glucose monitoring results.

Lab report translation

An A1c of 7% roughly corresponds to an average glucose of 154.2 mg/dL (8.6 mmol/L).

This is an educational estimate, not a diagnosis or a replacement for medical advice.

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