What are Target HbA1c Levels?
May 18, 2026
What are target HbA1c levels? If you are managing diabetes or assessing your risk, the HbA1c test is one of the most important tools in your medical kit. Unlike daily finger-prick tests, it provides a...
Understanding your blood sugar (glucose) levels is the first step in managing metabolic health. Blood glucose is the primary sugar found in your blood, acting as the main energy source for your body’s cells.
So. What is a Normal Blood Glucose Level?
For most healthy adults, blood sugar levels fluctuate within a narrow window. These levels are measured in mmol/L (millimoles per litre).
Fasting/Normal: 4.0 to 6.0 mmol/L.
Post-Meal (2 hours after eating): Should be less than 8.0 mmol/L.
Doctors typically use two primary methods to check for blood sugar issues:
Plasma Glucose Test: A snapshot of your blood sugar at a specific moment (either fasting or random).
HbA1c Test: A measure of your average blood sugar levels over the past 2 to 3 months.
If your glucose levels fall outside the normal range, you may be classified as having prediabetes (impaired glucose tolerance) or Type 2 Diabetes.
Blood Glucose Thresholds
| Category | Fasting Glucose | Random/Post-Meal Glucose |
| Normal | 4.0 – 6.0 mmol/L | Under 7.8 mmol/L |
| Prediabetes | 6.1 – 6.9 mmol/L | 7.8 – 11.0 mmol/L |
| Diabetes | 7.0 mmol/L or higher | Over 11.1 mmol/L |
Note: A “Random Blood Glucose” test is taken at any time of day, regardless of when you last ate. If this result is above 11.1 mmol/L, it is a strong clinical indicator of diabetes.
Understanding the HbA1c Test
While glucose levels change hourly, the HbA1c test provides the “big picture.”
Normal: Below 42 mmol/mol (6.0%)
Prediabetes: 42–47 mmol/mol (6.0% – 6.4%)
Diabetes: 48 mmol/mol (6.5%) or higher
Maintaining blood sugar within the 4-6 mmol/L range is ideal for long-term health. If your random blood sugar exceeds 7 mmol/L, or your fasting levels are consistently high, consult a doctor or diabetic nurse for a formal HbA1c screening. Early detection of prediabetes can often lead to a full reversal through lifestyle changes.
What are target HbA1c levels? If you are managing diabetes or assessing your risk, the HbA1c test is one of the most important tools in your medical kit. Unlike daily finger-prick tests, it provides a...
Allopurinol – a long-term treatment for gout prevention Allopurinol is used as a long-term tablet for gout prevention. Uric acid (urate) is a waste product naturally found in the blood. It is cr...
What is a Normal Human Weight? There is no such thing as normal human weight. There are averages. And average human weight varies across the globe – with averages generally increasing over time....
Metformin – most common tablet for type 2 diabetes This is a guide to the world’s most prescribed diabetes medication. Metformin (brand names include Glucophage and Bolamyn) is the most co...
