Convert Millimoles per Liter (mmol/L) to Milligrams per Deciliter (mg/dL)
A UK or Canadian meter shows blood sugar in mmol/L; American charts and communities use mg/dL. Multiply mmol/L by 18 to convert — 5.5 mmol/L ≈ 99 mg/dL.
Formula
1 mmol/L = 18.0156 mg/dL
To convert mmol/L to mg/dL, multiply the value by 18.0156.
Conversion Table
| Millimoles per Liter (mmol/L) | Milligrams per Deciliter (mg/dL) |
|---|---|
| 2 mmol/L | 36.0312 mg/dL |
| 2.2 mmol/L | 39.6343 mg/dL |
| 2.5 mmol/L | 45.039 mg/dL |
| 2.8 mmol/L | 50.4437 mg/dL |
| 3 mmol/L | 54.0468 mg/dL |
| 3.3 mmol/L | 59.4515 mg/dL |
| 3.9 mmol/L | 70.2608 mg/dL |
| 4.4 mmol/L | 79.2686 mg/dL |
| 5 mmol/L | 90.078 mg/dL |
| 5.5 mmol/L | 99.0858 mg/dL |
| 6.1 mmol/L | 109.8952 mg/dL |
| 7 mmol/L | 126.1092 mg/dL |
| 7.8 mmol/L | 140.5217 mg/dL |
| 8.5 mmol/L | 153.1326 mg/dL |
| 10 mmol/L | 180.156 mg/dL |
| 11.1 mmol/L | 199.9732 mg/dL |
| 13.9 mmol/L | 250.4168 mg/dL |
| 16.7 mmol/L | 300.8605 mg/dL |
| 20 mmol/L | 360.312 mg/dL |
| 33.3 mmol/L | 599.9195 mg/dL |
Common mmol/L to mg/dL Examples
- 3.9 mmol/L = 70.2608 mg/dL
- 4.5 mmol/L = 81.0702 mg/dL
- 5 mmol/L = 90.078 mg/dL
- 5.5 mmol/L = 99.0858 mg/dL
- 6.1 mmol/L = 109.8952 mg/dL
- 7 mmol/L = 126.1092 mg/dL
- 7.8 mmol/L = 140.5217 mg/dL
- 11.1 mmol/L = 199.9732 mg/dL
About mmol/L to mg/dL
The precise factor is 18.02 (from the 180.16 g/mol molar mass of glucose), so mg/dL = mmol/L × 18.02. Key values both ways: 4.0 mmol/L = 72 mg/dL, 5.5 = 99, 6.1 = 110, 7.0 = 126 (the fasting diabetes threshold), 10.0 = 180, and 11.1 mmol/L = 200 mg/dL — the classic 2-hour post-meal diagnostic cut-off.
Unit conversion only, not medical advice: glucose targets are individual and set with your clinician. Most meters and CGM apps can be switched between the two units in settings.
Frequently Asked Questions
What is 7 mmol/L in mg/dL?
126 mg/dL — the ADA fasting threshold for diagnosing diabetes.
Which countries use mmol/L?
The UK, Ireland, Canada, Australia, New Zealand, China and most of Europe. The US, Japan, India and parts of continental Europe report mg/dL.
Why is the conversion factor between mmol/L and mg/dL 18.0156?
It comes from the official definitions of both Blood Sugar (Glucose) units, which are anchored to internationally agreed reference standards.
What is a quick way to estimate mmol/L to mg/dL?
Round 18.0156 to one or two significant digits and multiply mentally. Use the exact factor when accuracy matters.
How is mg/dL used in everyday life?
Milligrams per Deciliter is commonly seen in regions and contexts where it is the preferred Blood Sugar (Glucose) unit, from signage to technical specifications.
How is mmol/L used in everyday life?
Millimoles per Liter appears in measurements, product labels, and reports wherever the local convention favors that unit for Blood Sugar (Glucose).
Which industries rely on mmol/L to mg/dL conversions?
Logistics, manufacturing, scientific research, and international commerce all routinely move between mmol/L and mg/dL.
What are common uses for converting mmol/L to mg/dL?
Typical scenarios include travel, trade, engineering, science, and any situation where data is reported in mmol/L but needed in mg/dL.