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HbA1c (Glycated Haemoglobin): normal range & what your result means
HbA1c reflects your average blood sugar over the past 2–3 months, so it does not need fasting. It is used to diagnose and monitor diabetes.
Typical adult reference range
| Measure | Range |
|---|---|
| Normal | < 5.7% |
| Prediabetes | 5.7–6.4% |
| Diabetes | ≥ 6.5% |
| Common target (treated diabetes) | ≈ < 7% (individualised) |
What a HIGH result can mean
- 5.7–6.4% = prediabetes; 6.5% or above = diabetes
- A rising HbA1c means average sugars are climbing
What a LOW result can mean
- A low HbA1c is generally good, but can be affected by anaemia or recent blood loss
Ranges vary by lab. Reference ranges are TYPICAL ADULT values and vary by laboratory, age, sex, pregnancy and the method used. Always read your result against the range printed on YOUR report, and let your doctor interpret it alongside your history.
Frequently asked questions
Do I need to fast for HbA1c?
No — because it reflects a 2–3 month average, HbA1c can be taken at any time of day without fasting.
What HbA1c should a diabetic aim for?
Many people aim for under 7%, but the target is individual — your doctor sets it based on your age, health and risk of lows.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.