Blood Sugar Converter
Convert between mg/dL and mmol/L blood glucose measurements
Blood Sugar Converter
Conversion Formula:
mmol/L = mg/dL ÷ 18
Measurement Context:
Status: Prediabetes
Fasting blood sugar is typically measured after at least 8 hours of not eating or drinking anything except water.
Reference Ranges
Fasting Blood Sugar
• Normal: 70-99 mg/dL (3.9-5.5 mmol/L)
• Prediabetes: 100-125 mg/dL (5.6-6.9 mmol/L)
• Diabetes: ≥126 mg/dL (≥7.0 mmol/L)
Before Meal
• Target for most people with diabetes:
• 80-130 mg/dL (4.4-7.2 mmol/L)
2 Hours After Meal
• Normal: <140 mg/dL (<7.8 mmol/L)
• Prediabetes: 140-199 mg/dL (7.8-11.0 mmol/L)
• Diabetes: ≥200 mg/dL (≥11.1 mmol/L)
Note: These are general guidelines. Individual targets may vary based on age, health conditions, and other factors. Always consult with a healthcare provider for personalized medical advice.
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Blood Sugar Visualization
100 mg/dL
5.6 mmol/L
Normal
70
100
126
200
Fasting Blood Sugar
Measured after at least 8 hours of not eating. A fasting blood sugar above 126 mg/dL on two separate tests suggests diabetes.
Common Reference Points
mg/dL (US)
70 = Low
100 = Normal
140 = High
mmol/L (Int'l)
3.9 = Low
5.6 = Normal
7.8 = High
Note: This visualization is for educational purposes only and not meant for medical diagnosis.
Mobile tip: Swipe left or right on the unit dropdown to quickly change units, or use the arrow buttons
Medical Disclaimer:
This tool is for educational purposes only and not intended for medical diagnosis or treatment. Always consult a qualified healthcare provider about your blood sugar readings and for medical advice.
About the Blood Sugar Converter
Convert between mg/dL and mmol/L blood glucose measurements All conversions run instantly in your browser and nothing you enter is sent to a server.
Common Conversion Formulas
| From | To | Formula |
|---|---|---|
| mg/dL | mmol/L | mmol/L = mg/dL × 0.0555 |
| mmol/L | mg/dL | mg/dL = mmol/L × 18.0182 |
| HbA1c (%) | eAG (mg/dL) | eAG = 28.7 × HbA1c - 46.7 |