Library/Blood sugar/HbA1c/7.7%

A1C of 7.7%What it means, and the average glucose behind it

7.7% A1C
Diabetes range
4%5.7%6.5%10%

An A1C of 7.7% is in the range the American Diabetes Association uses for diabetes, 6.5% or higher, which a repeat lab test confirms. It works out to an average glucose of about 174 mg/dL (9.7 mmol/L).

Ask AI about this pageChatGPTClaudePerplexity
A1C7.7%
In mmol/mol61
Average glucose174 mg/dL9.7 mmol/L
Where 95% of people sat140 to 207 mg/dLADAG study

What usually happens next

One result isn't a diagnosis: the ADA confirms it with a second abnormal test (a repeat A1C, or a fasting glucose) unless symptoms make it clear.

Bring the result to your doctor, who will look at it with your fasting glucose, kidney function and blood pressure.

When an A1C can read wrong

A1C counts sugar stuck to red blood cells over their roughly three-month life, so anything that changes how long those cells live can move it without your glucose changing: anaemia, iron deficiency, kidney disease, pregnancy, a recent blood transfusion, and some haemoglobin variants. If your A1C and your glucose readings don't agree, that's usually why, and a fasting glucose or fructosamine can settle it.

Read it with

Nearby results

Questions

Is an A1C of 7.7% good?

7.7% is in the diabetes range (6.5% or higher). A second test confirms it, and your doctor reads it with your other results.

What average blood sugar is an A1C of 7.7%?

About 174 mg/dL (9.7 mmol/L). In the ADAG study, 95% of people with this A1C had an average between 140 to 207 mg/dL.

What is 7.7% in mmol/mol?

61 mmol/mol. Many countries print A1C in mmol/mol (the IFCC unit) rather than percent.

Worked out by LifeFrom from the ADA standards and the ADAG study, and not yet reviewed by a clinician. For your own understanding: only a lab test, read by your clinician, diagnoses anything.