Blood sugar converter: mg/dL to mmol/L
To convert blood sugar from mg/dL to mmol/L, divide by 18.02. To convert from mmol/L to mg/dL, multiply by 18.02. For example, 100 mg/dL is about 5.5 mmol/L, and 7.0 mmol/L is about 126 mg/dL.
How to convert blood sugar units
mg/dL to mmol/L: divide by 18.02.
mmol/L to mg/dL: multiply by 18.02.
Blood sugar conversion chart
| mg/dL | mmol/L |
|---|---|
| 40 | 2.2 |
| 50 | 2.8 |
| 60 | 3.3 |
| 70 | 3.9 |
| 80 | 4.4 |
| 90 | 5.0 |
| 100 | 5.5 |
| 110 | 6.1 |
| 120 | 6.7 |
| 130 | 7.2 |
| 140 | 7.8 |
| 150 | 8.3 |
| 160 | 8.9 |
| 170 | 9.4 |
| 180 | 10.0 |
| 190 | 10.5 |
| 200 | 11.1 |
| 220 | 12.2 |
| 240 | 13.3 |
| 260 | 14.4 |
| 280 | 15.5 |
| 300 | 16.6 |
| 320 | 17.8 |
| 340 | 18.9 |
| 360 | 20.0 |
| 380 | 21.1 |
| 400 | 22.2 |
Which unit does my meter use?
Look at the number on the screen and the unit printed beside it. Readings such as 90 or 126 are almost always mg/dL, and readings such as 5.0 or 7.0 are almost always mmol/L. Read the full explanation in mg/dL vs mmol/L.
Information, not medical advice. Talk to your care team about your own targets and treatment. Never use a converter or a diary entry to work out an insulin or medicine dose.
Frequently asked questions
How do I convert mg/dL to mmol/L?
Divide the mg/dL number by 18.02. For example, 180 mg/dL divided by 18.02 is about 10.0 mmol/L.
How do I convert mmol/L to mg/dL?
Multiply the mmol/L number by 18.02. For example, 5.5 mmol/L times 18.02 is about 99 mg/dL.
Why is the factor 18.02?
Glucose has a molar mass of about 180.16 grams per mole. One millimole per litre is therefore about 18.02 milligrams per decilitre.
Is the converter private?
Yes. The numbers you type are converted in your browser and are never sent anywhere.
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