Blood Sugar Level Converter & Classifier
Understanding your blood sugar levels is crucial for managing diabetes or monitoring your overall health. This calculator helps you convert blood glucose readings between mg/dL and mmol/L, and provides a general classification based on common thresholds for both fasting and non-fasting states.
Understanding Your Blood Sugar Levels
Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat and is your body's main source of energy. Your blood glucose level is the amount of glucose in your blood. Keeping your blood sugar levels within a healthy range is vital for preventing serious health complications.
Units of Measurement: mg/dL vs. mmol/L
Blood glucose levels are measured in two primary units:
- Milligrams per deciliter (mg/dL): This unit is commonly used in the United States and some other countries.
- Millimoles per liter (mmol/L): This unit is used in most other parts of the world, including Canada, the UK, and Australia.
It's important to know which unit your meter uses and to be able to convert between them, especially if you're comparing your readings with international guidelines or information.
Blood Sugar Level Classifications
The classifications provided by this calculator are general guidelines. Always consult with a healthcare professional for personalized advice and diagnosis.
Fasting Plasma Glucose (FPG)
A fasting blood sugar test is taken after you haven't eaten or drunk anything (except water) for at least 8 hours. It's often used to screen for prediabetes and diabetes.
- Normal: Less than 100 mg/dL (5.6 mmol/L)
- Prediabetes: 100 to 125 mg/dL (5.6 to 6.9 mmol/L)
- Diabetes: 126 mg/dL (7.0 mmol/L) or higher
Non-Fasting / Random Plasma Glucose (RPG)
A random blood sugar test can be taken at any time, regardless of when you last ate. It's often used to diagnose diabetes, especially if you have symptoms.
- Normal: Less than 140 mg/dL (7.8 mmol/L)
- Prediabetes (Impaired Glucose Tolerance – IGT): 140 to 199 mg/dL (7.8 to 11.0 mmol/L) (often assessed with a 2-hour post-glucose load test)
- Diabetes: 200 mg/dL (11.1 mmol/L) or higher
Important Disclaimer
This calculator is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
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