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HbA1c to Average Glucose Calculator

Result

Calculated result 125.5 Based on the values entered.
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HbA1c to Average Glucose Calculator — free online calculator.

Formula

eAG (mg/dL) = 28.7 × HbA1c − 46.7 (ADAG study)
  • HbA1c to Average Glucose Calculator calculates its result from Hba1, C. It uses the formula eAG (mg/dL) = 28.7 × HbA1c − 46.7 (ADAG study). Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Hba1, C. Enter them in the units and format shown in the calculator.
  • Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: HbA1c to Average Glucose

Inputs
  • Hba1: 2
  • C: 3

Using Hba1 = 2, C = 3, the calculated result is 125.5.

Sample result: Calculating…

Frequently asked questions

What does the HbA1c to Average Glucose calculate?

HbA1c to Average Glucose Calculator — free online calculator.

Which values should I enter?

Enter Hba1, C using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: eAG (mg/dL) = 28.7 × HbA1c − 46.7 (ADAG study).

Why might my result differ from another source?

Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026