Frequently Asked Questions
What is a good total-to-HDL cholesterol ratio?
A ratio below 3.5 is often considered optimal, 3.5 to 5 is moderate, and above 5 is high. Targets are individualized, so discuss your numbers with your doctor.
Why is non-HDL cholesterol useful?
Non-HDL cholesterol is calculated by subtracting HDL from total cholesterol, capturing the combined burden of LDL, VLDL, IDL, and other atherogenic particles in one figure. It does not require a fasting sample and is considered a stronger predictor of cardiovascular events than LDL alone, particularly in people with elevated triglycerides or metabolic syndrome.
How is LDL estimated here?
When you enter triglycerides, the calculator uses the Friedewald equation (LDL = total minus HDL minus triglycerides divided by 5), which is reliable for fasting samples with triglycerides under about 400 mg/dL.
Can I diagnose my heart risk from this?
No. This calculator is for general information only and is not medical advice. Your doctor weighs many factors such as blood pressure, age, and family history, so review your full lipid panel with them.
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General information only. Not medical advice.
Health & Medical Disclaimer: General information only. Not medical advice.
This calculator provides general health information only and is not medical advice. Results do not replace professional medical evaluation or diagnosis. Consult a licensed healthcare provider before making health decisions. Always seek immediate medical attention for emergencies.