How do you convert blood sugar from mmol/L to mg/dL?

Multiply the mmol/L figure by 18. For example, 5.4 mmol/L is about 97 mg/dL. To go the other way, divide mg/dL by 18.

Which unit does the UK use for blood sugar?

The UK reports blood glucose in mmol/L on meters and lab reports. The United States and some other countries use mg/dL, which is why the same reading looks very different.

Does this tell me if my blood sugar is normal?

No. This converter only changes the unit; it is not a diagnosis. Whether a reading is in range depends on whether you were fasting and on your wider picture, which is for a clinician to interpret. For a longer-term view, an HbA1c is often more useful than a single reading.

Helvy tool · Free

Blood Sugar Converter

UK meters and labs report blood sugar in mmol/L; US sources use mg/dL. Convert between them instantly, no account needed.

Value in mmol/L

1 mmol/L = 18.0182 mg/dL for blood glucose.

How this is worked out

Uses the standard conversion factor for glucose: 1 mmol/L = 18.0182 mg/dL (molar mass 180.16 g/mol), so 1 mg/dL = 0.0555 mmol/L.

This tool is for general wellbeing information and is not a diagnosis or medical advice. It places the numbers you enter in context; it cannot tell you whether you have a condition. If a result concerns you, or you have symptoms, speak to your GP.

Questions

How do you convert blood sugar from mmol/L to mg/dL?: Multiply the mmol/L figure by 18. For example, 5.4 mmol/L is about 97 mg/dL. To go the other way, divide mg/dL by 18.
Which unit does the UK use for blood sugar?: The UK reports blood glucose in mmol/L on meters and lab reports. The United States and some other countries use mg/dL, which is why the same reading looks very different.
Does this tell me if my blood sugar is normal?: No. This converter only changes the unit; it is not a diagnosis. Whether a reading is in range depends on whether you were fasting and on your wider picture, which is for a clinician to interpret. For a longer-term view, an HbA1c is often more useful than a single reading.

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Blood Sugar Converter

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A clearer picture of your health starts with a single drop.