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HbA1c to Average Glucose Calculator

eAG = 28.7 × HbA1c − 46.7 — estimated average glucose.

Converts HbA1c percentage to estimated average glucose (eAG) in mg/dL and mmol/L using the ADAG study formula.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

eAG (mg/dL) = 28.7 × HbA1c(%) − 46.7

In depth

Converts HbA1c percentage to estimated average glucose (eAG) in mg/dL and mmol/L using the ADAG study formula.