Glucose unit converter
Convert glucose between mg/dL, mmol/L and g/L. Type in either box. The factors come from our catalog and are checked by code.
AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03
1 mg/dL = 0.0555 mmol/L. Nothing you type here leaves your browser.
The conversion
- 1 mg/dL = 0.05551 mmol/LFrom mg/dL to mmol/L: divide by 18.02. Back again: multiply by 18.02.
- 1 mg/dL = 0.01 g/LFrom mg/dL to g/L: divide by 100. Back again: multiply by 100.
Mass and molar units are linked by the molecular weight: 180.16 g/mol (D-glucose, C6H12O6 (PubChem CID 5793)). Source: PubChem, National Library of Medicine.
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| mg/dL | mmol/L | g/L |
|---|---|---|
| 20 | 1.1 | 0.2 |
| 40 | 2.2 | 0.4 |
| 60 | 3.3 | 0.6 |
| 70 | 3.9 | 0.7 |
| 80 | 4.4 | 0.8 |
| 99 | 5.5 | 0.99 |
| 100 | 5.6 | 1 |
| 120 | 6.7 | 1.2 |
| 140 | 7.8 | 1.4 |
| 160 | 8.9 | 1.6 |
| 180 | 10 | 1.8 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the Glucose page.
| Who | mg/dL | mmol/L | g/L |
|---|---|---|---|
| Adults | 70–99 | 3.9–5.5 | 0.7–0.99 |
| 1+, non fasting | 70–140 | 3.9–7.8 | 0.7–1.4 |