Clarilab

Diabetes

HbA1c test

Also called A1c, glycated hemoglobin, glycosylated hemoglobin

Your average blood sugar over the last 2–3 months.

Typical range
Below 5.7%.
Preparation
No fasting needed.
Usual recheck
About 3 months when out of range

Why it's done

The main test to diagnose and track diabetes. No fasting needed.

What a high result can mean

5.7–6.4% is prediabetes; 6.5% or more suggests diabetes. Many people with diabetes aim for below 7%.

Got a report with HbA1c?

Upload the PDF to Clarilab: it reads the values in your browser, flags anything out of range and tracks your results over time.

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Included in these checkups

Yearly health checkupFeeling tired all the timeDiabetes careHeart healthWomen's health and PCOSMen over 40Planning a pregnancyPregnancy: first trimester

More diabetes tests

Fasting glucoseBlood sugar after not eating for at least 8 hours. Post-meal glucose (PPBS)Blood sugar 2 hours after a meal. Fasting insulinInsulin level after fasting; used with glucose to estimate insulin resistance (HOMA-IR).