Blood Sugar Converter
A blood glucose reading of 100 mg/dL equals 5.55074 mmol/L: divide mg/dL by 18.016 (many labs round to 18).
5.55074490996692 mmol/L
Full answer, then cut to fewer decimals (not rounded):
- 5.55074490996692 mmol/L
- 5.5507449099669 mmol/L
- 5.550744909966 mmol/L
- 5.55074490996 mmol/L
- 5.5507449099 mmol/L
- 5.550744909 mmol/L
- 5.55074490 mmol/L
- 5.5507449 mmol/L
- 5.550744 mmol/L
- 5.55074 mmol/L
- 5.5507 mmol/L
- 5.550 mmol/L
- 5.55 mmol/L
- 5.5 mmol/L
- Factor (mg/dL → mmol/L)
- 0.055507449
- Factor (mmol/L → mg/dL)
- 18.0156
| mg/dL | mmol/L |
|---|---|
| 70 | 3.88552 |
| 80 | 4.4406 |
| 90 | 4.99567 |
| 100 | 5.55074 |
| 110 | 6.10582 |
| 126 | 6.99394 |
| 140 | 7.77104 |
| 180 | 9.99134 |
| 200 | 11.1015 |
| 250 | 13.8769 |
| 300 | 16.6522 |
Step-by-step solution
- Basis: M = 180.156 g/mol, so 1 mmol/L = 18.0156 mg/dL
- 100 mg/dL × 0.055507449 = 5.55074491 mmol/L
Blood Sugar Converter Formula
mmol/L = mg/dL ÷ 18.0156
glucose C₆H₁₂O₆, molar mass 180.156 g/mol; 1 mmol/L = 18.0156 mg/dL
Worked Example
A glucose reading of 100 mg/dL:
- Basis: M = 180.156 g/mol, so 1 mmol/L = 18.0156 mg/dL
- 100 mg/dL × 0.055507449 = 5.55074491 mmol/L
Factor (mmol/L → mg/dL): 18.0156
| mg/dL | mmol/L |
|---|---|
| 70 | 3.88552 |
| 80 | 4.4406 |
| 90 | 4.99567 |
| 100 | 5.55074 |
| 110 | 6.10582 |
| 126 | 6.99394 |
| 140 | 7.77104 |
| 180 | 9.99134 |
| 200 | 11.1015 |
| 250 | 13.8769 |
| 300 | 16.6522 |
Unit conversion only
The converter applies the molar mass of glucose and nothing else. It does not diagnose, interpret or replace medical advice.
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Example: A creatinine result of 1.2 mg/dL: Creatinine = 106.08 µmol/L.
Frequently asked questions
Which countries use mmol/L?
The UK, Canada, Australia, most of Europe and much of Asia use mmol/L; the United States and some other countries use mg/dL. Meters can usually be switched.
Why 18?
Glucose weighs 180.16 g per mole. 1 mmol/L is 180.16 mg per litre, which is 18.016 mg per decilitre.
Does this tell me if my result is normal?
No. This tool only converts units. Target ranges depend on the test, timing and your circumstances; ask your doctor or the lab report’s reference range.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures .
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
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APA
Scientific Converters. (2026, October 15). Blood Sugar Converter. Retrieved October 25, 2026, from https://scientificconverters.com/calculators/blood-sugar-converter/
IEEE
Scientific Converters, "Blood Sugar Converter," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/calculators/blood-sugar-converter/