Blood Sugar Converter (mg/dL to mmol/L)
Convert blood sugar readings between mg/dL and mmol/L.
Two units for the same reading
Blood glucose is measured in two different units depending on where you are — milligrams per decilitre in the US and some other countries, millimoles per litre across much of the rest of the world. A reading, a target, or a guideline quoted in one unit often needs translating to the other. This converts between them so a figure makes sense whichever system you are used to.
Enter a reading in one unit and see it in the other.
A conversion, not medical advice
This is a straightforward unit conversion and nothing more — it does not interpret a reading or tell you what any value means for you. Blood glucose targets and what to do about a reading are matters for you and a healthcare professional who knows your situation, and they vary from person to person. Use the conversion to translate a number between the two units when comparing information across sources, and rely on your own clinical guidance for what the number actually means.
Frequently asked questions
What are the two blood sugar units?
Milligrams per decilitre, used in the US and some countries, and millimoles per litre, used across much of the rest of the world.
Can this tell me if a reading is healthy?
No — it only converts between units. What a reading means for you is a matter for your own healthcare professional.
Is my reading uploaded?
No. The conversion happens in your browser.