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Diabetes & Metabolism

Blood Sugar Converter

Convert blood sugar (glucose) between mmol/L (UK) and mg/dL (US) instantly. Includes fasting glucose ranges for normal, pre-diabetes, and diabetes.

mmol/L (UK, Europe, Australia) ↔ mg/dL (US)
mmol/L
UK, Europe, Australia
mg/dL
US
212
Critical Low
Low
Optimal
Normal
High
Critical High

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Key Points

  • Converts blood glucose between mmol/L (UK, Europe, Australia) and mg/dL (US) using the standard factor of 18.018
  • Normal fasting glucose is 3.9–5.5 mmol/L (70–99 mg/dL); pre-diabetes sits at 5.6–6.9 mmol/L (100–125 mg/dL)
  • Diabetes is typically diagnosed at a fasting glucose of 7.0 mmol/L (126 mg/dL) or above on two separate occasions
  • A single reading is a snapshot. HbA1c gives a 3-month average and pairs well with fasting insulin for a fuller picture
  • Values are influenced by recent food, exercise, illness, and stress. Always interpret results with a healthcare professional

Check Your Blood Sugar

A blood test that includes Blood Sugar, with AI-powered analysis and recommendations built around your results.