Switch blood sugar readings between mg/dL and mmol/L.
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Blood glucose is measured in mg/dL in the US and in mmol/L in most other countries. To convert, multiply mmol/L by 18 (exactly 18.016) to get mg/dL, or divide mg/dL by 18.
Normal fasting glucose is below 100 mg/dL (5.6 mmol/L); 126 mg/dL (7.0 mmol/L) or more on two tests is in the diabetes range.
| Reading | 126 |
| Unit | mg/dL |
| mmol/L | 7 mmol/L |
| mg/dL | 126 |
| mmol/L | 7 |
| If this was a fasting reading | Diabetes range if fasting (confirm with a doctor) |
7 mmol/L.
| Reading | 5.5 |
| Unit | mmol/L |
| mg/dL | 99 mg/dL |
| mg/dL | 99 |
| mmol/L | 5.5 |
| If this was a fasting reading | Normal fasting range |
99 mg/dL.
5.6 mmol/L.
126 mg/dL.
Fasting 70–99 mg/dL (3.9–5.5 mmol/L); under 140 mg/dL (7.8 mmol/L) two hours after eating.
mg/dL measures weight per volume; mmol/L measures molecules per volume. Glucose's molar mass (180.16) links them.