Glucose: mg/dL to mmol/L
Convert Glucose between mg/dL and mmol/L — Blood glucose is reported in mg/dL in the United States and in mmol/L across most other countries. Type in either box to convert both ways.
Glucose conversion table (mg/dL to mmol/L)
| Glucose (mg/dL) | Glucose (mmol/L) |
|---|---|
| 70 mg/dL | 3.88552 mmol/L |
| 90 mg/dL | 4.99568 mmol/L |
| 100 mg/dL | 5.55075 mmol/L |
| 110 mg/dL | 6.10583 mmol/L |
| 126 mg/dL | 6.99395 mmol/L |
| 140 mg/dL | 7.77105 mmol/L |
| 180 mg/dL | 9.99135 mmol/L |
| 200 mg/dL | 11.1015 mmol/L |
How to convert Glucose from mg/dL to mmol/L
To convert Glucose, multiply mg/dL by 0.0555 (or divide by 18) — glucose has a molar mass of 180.16 g/mol. For example, 1 mg/dL equals 0.0555075 mmol/L. The converter above runs the exact factor at full precision and updates as you type; the swap button flips the direction.
Frequently asked questions
How do you convert Glucose from mg/dL to mmol/L?
Multiply mg/dL by 0.0555 (or divide by 18) — glucose has a molar mass of 180.16 g/mol. For example, 1 mg/dL is 0.0555075 mmol/L. The converter above does this instantly and works both ways — type a value in either box. It uses the exact factor at full precision, so the result matches published clinical conversions.
What is a normal Glucose level?
Fasting glucose is typically about 70–99 mg/dL (3.9–5.5 mmol/L); 126 mg/dL (7.0 mmol/L) or higher on two tests indicates diabetes. These are general adult figures only — the reference interval on your own lab report is what applies to you, and it can differ by lab, method, age and sex. The conversion table above runs from 70 to 200 mg/dL, or 3.88552 to 11.1015 mmol/L, so a range quoted in either system can be lined up against your own figure.
Why is Glucose reported in different units?
Blood glucose is reported in mg/dL in the United States and in mmol/L across most other countries. The two systems describe the same measurement, so a value converts exactly from one to the other with no loss of meaning — only the units and the number change. That is why guidelines, journals and lab reports from different countries quote different numbers for the same Glucose result. The two boxes above are labelled mg/dL and mmol/L, so you can read a value in whichever system your own report uses.
Is this Glucose converter accurate and free?
Yes — this Glucose converter is both accurate and free. It applies the standard, published conversion factor at full double precision in your browser, with nothing uploaded or stored, and there is no sign-up or usage limit. It converts units only and does not interpret or diagnose results.
This is a unit-conversion reference tool, not a diagnosis or medical advice. Reference intervals are general adult guides that vary by laboratory, method and individual — always read your result against the range printed on your own report and discuss it with a qualified healthcare professional.
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