Convert Cholesterol Units
Use this calculator to convert between mg/dL and mmol/L for cholesterol and triglycerides.
Why Cholesterol Unit Conversion Matters
Depending on your country, lab reports may show lipid values in either mg/dL (milligrams per deciliter) or mmol/L (millimoles per liter). If you read research from another region, compare older lab records, or use international clinical guidelines, unit conversion becomes essential.
This tool helps you convert quickly and accurately so you can better understand your lipid panel results for total cholesterol, LDL, HDL, and triglycerides.
Cholesterol Conversion Formulas
Total Cholesterol, LDL, and HDL
- mmol/L = mg/dL × 0.02586
- mg/dL = mmol/L × 38.67
Triglycerides
- mmol/L = mg/dL × 0.01129
- mg/dL = mmol/L × 88.57
Typical Reference Targets (Adults)
These are common general targets used in many guidelines. Your clinician may use personalized goals based on your risk profile.
- Total Cholesterol: less than 200 mg/dL (less than 5.18 mmol/L)
- LDL Cholesterol: less than 100 mg/dL (less than 2.59 mmol/L) for many patients; lower for high-risk groups
- HDL Cholesterol: 40 mg/dL (1.03 mmol/L) or higher in men, 50 mg/dL (1.29 mmol/L) or higher in women
- Triglycerides: less than 150 mg/dL (less than 1.69 mmol/L)
How to Use This Calculator
- Select the lipid type: cholesterol fractions or triglycerides.
- Choose the unit your lab report currently uses.
- Enter the number from your report.
- Click Convert to get the equivalent value in the other unit.
Common Conversion Mistakes to Avoid
- Using the cholesterol factor for triglycerides (or vice versa).
- Comparing values from different unit systems without converting first.
- Interpreting one lipid marker in isolation rather than reviewing the full panel and risk factors.
Clinical Context Is Important
A converted number is useful, but cardiovascular risk assessment depends on more than one lab value. Age, blood pressure, diabetes status, smoking, family history, inflammation, medication use, and imaging findings can all influence treatment decisions.
If your values are outside target range, discuss next steps with your healthcare professional. Lifestyle strategies (nutrition, exercise, sleep, weight management, smoking cessation) and, when needed, medication can significantly reduce risk.
Medical disclaimer: This calculator is for educational use only and does not provide diagnosis or treatment recommendations. Always consult a qualified healthcare professional for medical advice.