LDL to HDL Ratio
This puts LDL alone against HDL instead of using total cholesterol, which already has HDL folded into it. Separating them makes the direction of travel clearer.
Your numbers
Total : HDL
2.6
Non-HDL
130mg/dL
Formula
Total : HDL = LDL ÷ HDL
Recommended thresholds differ between countries and guidelines. Read it alongside the whole panel, never on its own.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| LDL (mg/dL)The kind that builds up in artery walls — lower is better. | 130 | 0 and up |
| HDL (mg/dL)The kind that carries cholesterol back to the liver — higher is better. | 50 | 0 and up |
Step by step
Quick reference table
Results when only LDL (mg/dL) changes and everything else stays put.
| LDL (mg/dL) | Total : HDL | Non-HDL (mg/dL) |
|---|---|---|
| 65 | 1.3 | 65 |
| 97.5 | 1.95 | 98 |
| 130 | 2.6 | 130 |
| 195 | 3.9 | 195 |
| 260 | 5.2 | 260 |
What each result means
| Result | At default values |
|---|---|
| Total : HDLTotal cholesterol over HDL — lower is better. | 2.6 |
| Non-HDL (mg/dL)Everything except HDL. | 130 |
Common mistakes
Recommended thresholds differ between countries and guidelines. Read it alongside the whole panel, never on its own.
Glossary
- LDL
- The kind that builds up in artery walls — lower is better.
- HDL
- The kind that carries cholesterol back to the liver — higher is better.
- Total : HDL
- Total cholesterol over HDL — lower is better.
- Non-HDL
- Everything except HDL.
Frequently asked questions
Q. How is LDL to HDL Ratio calculated?
Total : HDL = LDL ÷ HDL — This puts LDL alone against HDL instead of using total cholesterol, which already has HDL folded into it. Separating them makes the direction of travel clearer.
Q. Can you walk through an example?
With LDL 130mg/dL, HDL 50mg/dL, the answer is Total : HDL 2.6.
Q. What do I need to enter?
Enter LDL, HDL. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only LDL (mg/dL) moves the answer to LDL (mg/dL) 65 → Total : HDL 1.3 and LDL (mg/dL) 260 → Total : HDL 5.2. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Recommended thresholds differ between countries and guidelines. Read it alongside the whole panel, never on its own.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.