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Blood Glucose Converter

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

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Enter your values to see the result.

Glucose: 1 mmol/L = 18.016 mg/dL. Diagnostic thresholds follow the ADA Standards of Care; confirm a diagnosis with a repeat test.

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How this calculation works

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Formula
Glucose(mmol/L) = glucose(mg/dL) / 18.016. Reverse conversion multiplies by 18.016.
Variables
  • Convert: mg/dL → mmol/L, mmol/L → mg/dL
  • Value
Units
  • Use the units shown beside each input. Counts and ratios are dimensionless unless labeled otherwise.
Example
100 mg/dL equals 5.55 mmol/L, and 7.0 mmol/L equals 126 mg/dL, the fasting threshold for diabetes.
Assumptions
Glucose: 1 mmol/L = 18.016 mg/dL. Diagnostic thresholds follow the ADA Standards of Care; confirm a diagnosis with a repeat test.
Source
ToolzHive calculation guide and calculator implementation. External reference verification is pending.
Last reviewed
Review date not yet recorded.

Methodology & References

The method depends on the selected model and input options. Review the assumptions and references above before interpreting the result.

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

Interpretation and limitations

  • 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.

References

External reference verification is pending. The formula and examples describe the current ToolzHive implementation.

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Clear instructions

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How to use the Blood Glucose Converter

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

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

Example and practical tips

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

Frequently asked questions

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.

  • 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.

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