LDL/HDL Ratio levels: what's normal, high and low
A simple ratio combining LDL and HDL into one risk number. Lower is generally better.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
The short answer
LDL/HDL Ratio is measured with a standard blood draw after an 8–12 hour fast. A typical reference range is 0.000 – 3.50 ratio. At TestWell it's $24.99 all-in as Lipid Panel with LDL/HDL Ratio, results in 1–3 business days, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis.
- Units
- ratio
- Sample
- Blood draw
- Fasting
- 8–12 hours
- Results
- 1–3 business days
- Price
- $24.99
- Labs
- Quest or Labcorp
LDL/HDL Ratio Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 0.000 – 3.50 ratio |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your LDL/HDL Ratio result may mean
Above 3.5 suggests elevated cardiovascular risk; below 2.0 is considered ideal.
What a high LDL/HDL Ratio means: causes, symptoms, next steps →Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
How do you get a LDL/HDL Ratio test?
Order online, a licensed physician reviews the requisition, and you walk into a nearby lab for the draw. LDL/HDL Ratio is available on its own or inside these panels — panels cost less per marker when you want the fuller picture.
| Option | Includes | Price |
|---|---|---|
| Lipid Panel with LDL/HDL Ratio | This marker only | $24.99 |
Quest vs. Labcorp for LDL/HDL Ratio: which lab should you pick?
Both are CLIA-certified national labs and the result is clinically equivalent, so pick whichever location is closer. Your report will print that lab's own reference range, which can differ slightly from the table above.
| Lab | Available | Price |
|---|---|---|
| Quest Diagnostics | Yes | $24.99 |
| Labcorp | Yes | $24.99 |
| BioReference (NY & NJ) | No | — |
Need help choosing a location? Use the lab finder to see draw sites near your ZIP.
Related Heart Health biomarkers
Markers commonly tested alongside LDL/HDL Ratio.
Frequently asked
Above 3.5 suggests elevated cardiovascular risk; below 2.0 is considered ideal. A single result above the reference range is a prompt to look closer with a clinician — often a repeat test and related markers — not a diagnosis on its own.
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