Instant mmol/L ⇄ mg/dL Converter
Choose your analyte, enter a value, and convert in one click.
How this mmol to mg/dL calculator works
This calculator converts common blood test values between mmol/L and mg/dL. Different countries and labs report results using different units, so this tool helps you quickly compare readings.
The conversion is based on a factor that depends on the substance being measured:
- Glucose: 1 mmol/L = 18.00 mg/dL
- Cholesterol: 1 mmol/L = 38.67 mg/dL
- Triglycerides: 1 mmol/L = 88.57 mg/dL
Conversion formulas
From mmol/L to mg/dL
mg/dL = mmol/L × factor
From mg/dL to mmol/L
mmol/L = mg/dL ÷ factor
Examples
Example 1: Glucose
If your glucose is 5.5 mmol/L, then:
5.5 × 18 = 99 mg/dL
Example 2: Cholesterol
If your total cholesterol is 200 mg/dL, then:
200 ÷ 38.67 = 5.17 mmol/L
Example 3: Triglycerides
If triglycerides are 1.7 mmol/L, then:
1.7 × 88.57 = 150.57 mg/dL
Quick reference table (glucose)
| mmol/L | mg/dL |
|---|---|
| 4.0 | 72 |
| 5.0 | 90 |
| 5.6 | 101 |
| 7.0 | 126 |
| 10.0 | 180 |
Why do some labs use mmol/L while others use mg/dL?
The difference is mostly regional and historical:
- mg/dL is commonly used in the United States.
- mmol/L is commonly used in Canada, Europe, Australia, and many other regions.
Both units are valid. The important thing is to compare your values in the same unit system when tracking trends over time.
Important note
This calculator is for educational use and quick unit conversion. It is not a diagnostic tool and does not replace medical advice. Always discuss lab results with your physician, especially if values are outside your target range.