Check your blood sugar reading against standard clinical ranges in seconds. Pick your test type, enter your number in mg/dL or mmol/L, and get a clear, instant interpretation with simple next steps.
Fasting means no food for at least 8 hours — usually first thing in the morning.
| Test | Normal | Prediabetes | Diabetes |
|---|
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Type a reading or tap a sample number to see your range, risk level, and clear next steps.
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A normal fasting blood sugar level is below 100 mg/dL, prediabetes is 100–125 mg/dL, and diabetes is 126 mg/dL or higher. Select your preferred measurement unit below to view standard clinical ranges.
| Test Type | Normal | Prediabetes | Diabetes |
|---|---|---|---|
| Fasting No food 8+ hrs | Below 100 < 5.6 | 100 – 125 5.6 – 6.9 | 126+ ≥ 7.0 |
| Post-meal 2 hrs after eating | Below 140 < 7.8 | 140 – 199 7.8 – 11.0 | 200+ ≥ 11.1 |
| Random Any time of day | Below 140 < 7.8 | 140 – 199 7.8 – 11.0 | 200+ ≥ 11.1 |
| HbA1c 2–3 month avg | Below 5.7% < 39 mmol/mol | 5.7 – 6.4% 39 – 46 mmol/mol | 6.5%+ ≥ 48 mmol/mol |
Normal blood sugar levels vary depending on the test. Here is the standard baseline:
Important: A single reading does not diagnose diabetes. Readings in elevated ranges should be confirmed with medical evaluation.
These are general reference ranges for non-pregnant adults. Targets can differ for pregnancy, young children, the elderly, and those managing existing conditions. Always confirm personal targets with a doctor.
A single reading is only a snapshot. To understand your metabolic health, it helps to know which test you took, when you took it, and what biological factors can influence the numbers on any given day.
Blood sugar naturally rises and falls through the day. The same person can get very different numbers depending on a few common factors—which is why one high reading does not automatically mean diabetes.
Your reading falls within a healthy baseline. Maintain this by prioritizing balanced whole-food meals, regular physical activity, and routine health check-ups. If you have a strong family history of diabetes, an annual screening is a sensible preventative habit.
This is an early-warning stage, not a final diagnosis—and it is highly responsive to lifestyle adjustments. Focus on reducing portion sizes of refined carbohydrates, increasing vegetable and fibre intake, and daily movement. Consult a physician for a follow-up HbA1c test.
A reading in this elevated range requires professional clinical confirmation, as diabetes is formally diagnosed using multiple tests over time. Please schedule a consultation rather than self-diagnosing. With the right medical guidance, blood sugar can be managed safely and effectively.
Many traditional Indian diets are carbohydrate-dense (high in rice and wheat), which can trigger sharper post-meal glucose spikes. Additionally, clinical data shows that South Asian populations often develop insulin resistance at lower body mass indices (BMI) and younger ages compared to Western populations. If your numbers sit near the prediabetes range, small but consistent changes to portion control and daily walking make a profound difference. Always verify home readings with a certified laboratory test.
A blood sugar chart is a helpful guide, but it cannot replace a medical opinion. Some readings and symptoms need prompt professional attention—confirming results with a proper test is always the safest next step.
Very high or very low blood sugar can become a medical emergency. Get help right away if you or someone else has:
When in doubt, treat it as urgent and contact emergency services or your nearest hospital.
A home reading is a useful start—a proper lab test or a doctor's review gives you a confident answer and a plan that actually fits your lifestyle.
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Common queries about managing and understanding blood sugar levels, reviewed by our medical team.
Generally, a reading consistently above 250 mg/dL (13.9 mmol/L) is considered dangerously high and may require immediate medical attention, especially if accompanied by symptoms like excessive thirst, frequent urination, nausea, or confusion. Levels above 300 mg/dL can lead to severe complications like Diabetic Ketoacidosis (DKA).
Drinking water does not actively "erase" sugar from your blood, but it does help your kidneys flush out excess glucose through urine. Staying hydrated also prevents your blood from becoming concentrated, which can artificially spike your readings. It is a vital part of healthy blood sugar management.
Yes. Physical and emotional stress trigger the release of hormones like cortisol and adrenaline. These hormones instruct your liver to release stored glucose into your bloodstream for quick energy (the "fight or flight" response), which can cause a noticeable spike in your blood sugar reading even if you haven't eaten.
A daily finger-prick test shows your exact blood sugar level at that specific moment in time (a snapshot). An HbA1c lab test measures the percentage of your red blood cells that have sugar attached to them, providing an average of your blood sugar levels over the past 2 to 3 months (the big picture).