Calculator
Enter one or more cholesterol values. Leave Non-HDL blank to calculate it automatically from Total minus HDL when both are available.
Example Data Table
Example below uses mg/dL as the input unit and converts values to mmol/L.
| Marker | Input Value (mg/dL) | Converted Value (mmol/L) | Notes |
|---|---|---|---|
| Total Cholesterol | 200.00 | 5.17 | Converted using 38.67 factor. |
| LDL Cholesterol | 130.00 | 3.36 | Common lab reporting conversion. |
| HDL Cholesterol | 50.00 | 1.29 | Useful for mixed unit reports. |
| Non-HDL Cholesterol | 150.00 | 3.88 | Can be entered or derived. |
Formula Used
These formulas are used for cholesterol markers such as total cholesterol, LDL cholesterol, HDL cholesterol, and non-HDL cholesterol. The calculator applies one factor for cholesterol conversions and can derive non-HDL automatically when total cholesterol and HDL are both supplied.
Important: This conversion factor is for cholesterol values. Triglycerides use a different factor and should be calculated separately.
How to Use This Calculator
- Select the unit used in your lab report.
- Choose your preferred decimal precision.
- Enter any available cholesterol values.
- Leave Non-HDL blank if you want it derived automatically.
- Click Convert Values to see results above the form.
- Review the chart for quick comparison of original and converted values.
- Use the export buttons to save the current result as CSV or PDF.
Frequently Asked Questions
1. What does this calculator convert?
It converts cholesterol measurements between mg/dL and mmol/L for total cholesterol, LDL, HDL, and non-HDL values. It also derives non-HDL when enough input data is available.
2. Why is Non-HDL optional?
Non-HDL can be entered directly, but it can also be calculated from total cholesterol minus HDL cholesterol. Leaving it blank saves time when your report already includes total and HDL values.
3. Can I use this for triglycerides?
No. Triglycerides use a different conversion factor, so this calculator is intended only for cholesterol-based markers. Using it for triglycerides would produce incorrect results.
4. Why do rounded values sometimes differ slightly?
Small differences happen because labs and calculators may round at different steps. Adjust the decimal precision setting if you want more detailed output before rounding.
5. Which unit is more common?
Many U.S. reports use mg/dL, while several international labs use mmol/L. This tool helps when comparing reports from different countries or reference systems.
6. Does the calculator store my results?
No. This page calculates values on submission and shows them in the browser. Exported CSV and PDF files are generated only when you click the download buttons.
7. Is this a diagnostic tool?
No. It is an informational conversion tool. Interpretation of lipid values depends on personal history, treatment goals, and lab-specific reference guidance from a clinician.
8. Can I export converted results?
Yes. After calculation, you can download a CSV file for spreadsheet use or a PDF report for printing, sharing, or keeping a simple record.