Blood Sugar Chart: What Is a Normal Level in mg/dL?
People often ask us the same question in different words: sugar kitni honi chahiye? The honest answer is that the "normal" range depends on when the test was taken and on your own situation. This chart explains the commonly used reference ranges and, more importantly, what to do with your number.
Key takeaways
- For most adults without diabetes, fasting sugar is under 100 mg/dL.
- Fasting 100–125 mg/dL is the pre-diabetes range; 126 or above on two tests suggests diabetes.
- A random reading of 200 mg/dL or more, with symptoms, needs a doctor promptly.
- One reading is never a diagnosis. Confirmation and targets come from your doctor.
The reference ranges, in plain words
Laboratories in Pakistan report blood sugar in milligrams per decilitre (mg/dL). The ranges below are the widely used diagnostic reference values for adults who are not pregnant. They are a starting point for a conversation with a doctor, not a self-diagnosis tool.
- Fasting (8+ hours without food): under 100 mg/dL is typical without diabetes; 100–125 is the pre-diabetes range; 126 or above, found on two occasions, is in the diabetes range.
- Random (any time of day): under 140 mg/dL is typical; 140–199 suggests the body is struggling with sugar; 200 or above with symptoms is in the diabetes range.
- Two hours after a meal: under 140 mg/dL is typical without diabetes. For many people already living with diabetes, doctors often aim for under 180, set individually.
- For people with diagnosed diabetes, a common fasting target is 80–130 mg/dL, but your own target is agreed with your doctor.
Is there a chart "by age"?
Many websites publish age-by-age sugar tables. Honestly, the diagnostic ranges above do not change with age. What does change with age is the target your doctor chooses for you: an older person with other conditions may be given a gentler, safer target than a younger person. So the age question has a real answer, but it comes from an individual assessment, not a lookup table.
One high reading: what now?
A single high number does not mean you have diabetes, and a single normal number does not rule it out. Readings move with food, stress, illness, poor sleep and even a rushed glucometer test. What matters is the pattern. If a reading surprises you, repeat it on another day at the proper time, write both numbers down, and take them to a doctor. A laboratory test of your 3-month average (HbA1c) is often the next sensible step.
Go to a doctor or emergency department today if a very high reading comes with drowsiness, vomiting, deep or fast breathing, or confusion, or if a low reading (under 70 mg/dL) comes with shakiness, sweating or fainting that does not settle after taking sugar.
Which test should you ask for?
A fasting sugar is the usual first check. If it is borderline, or if readings and symptoms do not match, doctors commonly add the 3-month average test (HbA1c) or a glucose tolerance test. Each answers a different question, so let the doctor choose the combination rather than collecting reports at random.
Key points
- • Numbers are a conversation starter, not a verdict.
- • Repeat surprising readings, record them, and bring the pattern to a doctor.
- • Targets are personal; diagnostic ranges are not an instruction to self-treat.
When to see a doctor
- Fasting readings repeatedly at 100 mg/dL or above, or random readings at 140 or above.
- Any reading of 200 or above, especially with thirst, frequent urination or weight loss.
- Readings that swing widely, or lows under 70 mg/dL.
- You have risk factors (family history, waist gain, high blood pressure) and have never been tested.
Related articles
Understanding HbA1c: Your 3-Month Blood Sugar Picture
What HbA1c means, why it matters for diabetes control, and how to read your result, explained simply for patients in Pakistan.
Common Signs of High Blood Sugar, and When to Act
Everyday signs that blood sugar may be running high, why they happen, and the warning signs that need urgent medical attention.
Pre-Diabetes: The Warning Stage Most People Never Feel
Sugar hone se pehle ki alamat: why pre-diabetes usually has no symptoms, the numbers doctors use, who should get tested, and the genuinely good news from prevention research.