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How to Use Blood Glucose Converter

Convert blood sugar between mg/dL and mmol/L, see whether a fasting value is normal, prediabetes or diabetes, and use a quick conversion chart.

About this tool

Convert blood sugar between mg/dL and mmol/L.

How to use Blood Glucose Converter

  1. Choose mg/dL to mmol/L or the reverse.
  2. Enter your glucose reading.
  3. Read the converted value and fasting category.

Worked example

100 mg/dL equals 5.55 mmol/L, and 7.0 mmol/L equals 126 mg/dL, the fasting threshold for diabetes.

How do I convert mmol/L to mg/dL?

Multiply by 18 (18.016 exactly). To go from mg/dL to mmol/L, divide by 18.

Is the category valid after a meal?

No. The normal, prediabetes and diabetes bands shown apply to fasting glucose only.

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