What is the difference between mg/dL and mmol/L?

mg/dL (milligrams per deciliter) and mmol/L (millimoles per liter) are two units for blood sugar. The US uses mg/dL, while most other countries use mmol/L. Formula: mmol/L = mg/dL ÷ 18.018.

What is normal fasting blood sugar?

Normal fasting blood sugar: 3.9-6.1 mmol/L (70-110 mg/dL). Post-meal should be below 7.8 mmol/L (140 mg/dL).

When do I need to convert blood sugar units?

When reading foreign medical reports, using imported glucose meters, or consulting international medical literature.

Blood Sugar Unit Converter - mg/dL ↔ mmol/L

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Convert blood sugar units mg/dL ↔ mmol/L

Health

Blood Sugar Value

Input Unit

5.6

mmol/L

Conversion Result

💡 Formula: mmol/L = mg/dL ÷ 18.018
Normal fasting: 3.9-6.1 mmol/L (70-110 mg/dL)

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