Cholesterol Ratio Calculator
Total/HDL Ratio
—
LDL/HDL Ratio
—
Triglyceride/HDL Ratio
—
Non-HDL Cholesterol
—
Cardiovascular Risk
—
Understanding Cholesterol Ratios
While individual cholesterol numbers matter, the ratios between different types of cholesterol are often better predictors of cardiovascular risk. The total cholesterol to HDL ratio is the most commonly used — a ratio below 5:1 is desirable, and below 3.5:1 is optimal.
HDL is protective ("good cholesterol"), so higher HDL relative to total cholesterol or LDL means lower risk. The triglyceride to HDL ratio is increasingly recognized as an indicator of insulin resistance — a ratio below 2:1 is ideal.
Non-HDL cholesterol (total minus HDL) captures all the atherogenic particles and may be a better predictor than LDL alone. Target non-HDL cholesterol is typically 30 mg/dL above your LDL target.
Frequently Asked Questions
What is a good cholesterol ratio?
Total/HDL ratio: below 5 is good, below 3.5 is optimal. LDL/HDL ratio: below 3.5 is good, below 2.5 is optimal. Triglyceride/HDL ratio: below 2 is ideal.
What does non-HDL cholesterol mean?
Non-HDL cholesterol is total cholesterol minus HDL. It captures all bad cholesterol types (LDL, VLDL, IDL) and is considered a better risk predictor than LDL alone. Target is typically below 130 mg/dL.
Can cholesterol ratios be improved?
Yes. Exercise raises HDL, diet changes lower LDL and triglycerides, weight loss improves all ratios, and medications (statins, fibrates) can help when lifestyle changes are insufficient.
How often should cholesterol be checked?
Adults 20+ should check every 4-6 years if normal risk. People with risk factors or on medication should check every 1-2 years. Children should be screened once between ages 9-11.