Blood Sugar Converter
Convert and track blood glucose levels between mg/dL and mmol/L
100
mg/dL
Prediabetes
5.6
mmol/L
Prediabetes
0
Total Readings
0
Avg mg/dL
Convert Blood Sugar
Enter value in either unit
Conversion: 1 mmol/L = 18.0182 mg/dL
Blood Sugar Analysis
Current: Prediabetes (fasting)
Prediabetes range. Lifestyle changes recommended.
Fasting Tests
0
Postprandial
0
Random Tests
0
Reference Ranges
Fasting: 70-99 mg/dL (3.9-5.5 mmol/L) - Normal
Fasting: 100-125 mg/dL (5.6-6.9 mmol/L) - Prediabetes
Postprandial: <140 mg/dL (7.8 mmol/L) - Normal
Reading History (0)
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Understanding Blood Sugar
What is Blood Glucose?
Blood glucose (blood sugar) 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 body regulates blood sugar levels through insulin and other hormones.
Units of Measurement
- mg/dL (milligrams per deciliter): Used primarily in the United States
- mmol/L (millimoles per liter): Used internationally and in most countries
- Conversion: To convert mg/dL to mmol/L, divide by 18.0182
Types of Blood Sugar Tests
- Fasting: Measured after 8+ hours without food. Normal: 70-99 mg/dL
- Random: Taken at any time regardless of meals
- Postprandial: Measured 2 hours after eating. Normal: <140 mg/dL
- HbA1c: Average blood sugar over 2-3 months. Normal: <5.7%
Blood Sugar Levels Guide
Normal Ranges:
- Fasting: 70-99 mg/dL (3.9-5.5 mmol/L)
- 2h Postprandial: <140 mg/dL (7.8 mmol/L)
- Random: 70-140 mg/dL (3.9-7.8 mmol/L)
Warning Signs:
- Hypoglycemia: <70 mg/dL (3.9 mmol/L)
- Prediabetes: 100-125 mg/dL fasting
- Diabetes: ≥126 mg/dL fasting
Features
- Instant conversion between mg/dL and mmol/L
- Track blood sugar readings with timestamps
- Multiple test types (fasting, random, postprandial)
- Color-coded status indicators
- Add notes to readings for context
- View reading history and averages
- Reference ranges for all test types
- Local storage for privacy
Medical Disclaimer
This tool is for informational purposes only. Always consult with your healthcare provider for medical advice, diagnosis, or treatment. If you experience symptoms of high or low blood sugar, seek immediate medical attention.