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A1C to estimated average glucose

The ADAG regression, giving the answer in the same unit your glucose meter uses.

The Formula

eAG = 28.7 x A1C - 46.7

The ADAG regression, giving the answer in the same unit your glucose meter uses.

SymbolMeaning
eAGEstimated average glucose
A1CGlycated haemoglobin

What Each Symbol Means

eAGmg/dL

Estimated average glucose

The three month average, in milligrams per decilitre.

A1C%

Glycated haemoglobin

Percentage of haemoglobin that is glycated.

See It Worked With Real Numbers

A formula on its own does not tell you which number goes where. The how to convert a1c to average blood sugar page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.

Where This Formula Appears

This equation is the working core of How To Convert A1C To Average Blood Sugar, filed under Health. Every number the guide produces comes from substituting into this one line.