What Is a Normal Cholesterol Level by Age?

A normal total cholesterol level for adults is below 200 mg/dL. But that single number doesn’t tell the full story. Your cholesterol panel breaks down into several components, each with its own healthy range, and some of those numbers matter more than others depending on your age, sex, and heart disease risk.

What Your Cholesterol Numbers Mean

Cholesterol is a waxy substance your body uses to build cell membranes, produce hormones (including sex hormones), and make vitamin D. Your liver produces most of the cholesterol you need, and the rest comes from food. A standard blood test, called a lipid panel, measures four things: total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. Some panels also report non-HDL cholesterol, which is simply your total cholesterol minus your HDL.

Each of these components plays a different role. LDL carries cholesterol into your arteries, where it can build up as plaque. HDL carries cholesterol away from your arteries and back to your liver for disposal. Triglycerides are a type of fat in your blood that your body uses for energy, but high levels contribute to artery damage. Understanding which numbers are in range and which aren’t helps you and your doctor figure out what, if anything, needs to change.

Normal Ranges for Adults

Here are the healthy targets for adults age 20 and older:

  • Total cholesterol: Below 200 mg/dL is desirable. Between 200 and 239 mg/dL is borderline high. At 240 mg/dL or above, it’s considered high.
  • LDL cholesterol: Below 100 mg/dL is optimal for healthy adults. Between 100 and 129 mg/dL is near optimal. Between 130 and 159 mg/dL is borderline high. At 160 to 189 mg/dL it’s high, and 190 mg/dL or above is very high.
  • HDL cholesterol: 60 mg/dL or above is desirable for both men and women. Below 40 mg/dL in men or below 50 mg/dL in women puts you at increased risk.
  • Triglycerides: Below 150 mg/dL is healthy. Between 150 and 199 mg/dL is borderline high. Between 200 and 499 mg/dL is high, and above 500 mg/dL is very high.
  • Non-HDL cholesterol: Below 130 mg/dL for adults. This number captures all the cholesterol types that can damage your arteries, not just LDL, so some doctors consider it a more complete picture of risk.

If you’re outside the U.S., your results may be reported in mmol/L rather than mg/dL. For reference, a total cholesterol of 200 mg/dL equals about 5.2 mmol/L, and an LDL of 100 mg/dL equals about 2.6 mmol/L.

Normal Ranges for Children and Teens

For anyone 19 or younger, the thresholds are slightly different. Total cholesterol should be below 170 mg/dL, LDL below 110 mg/dL, HDL above 45 mg/dL, non-HDL below 120 mg/dL, and triglycerides below 90 mg/dL for ages 10 to 19. Children’s standards are tighter because early buildup in the arteries, while rare, can set the stage for problems decades later.

Why LDL Targets Vary by Risk

The “below 100 mg/dL” LDL target applies to generally healthy adults. If you already have heart disease, have had a heart attack or stroke, or have significant plaque buildup in your arteries, the goal drops to below 70 mg/dL. For people at the very highest risk, the most recent guidelines from the American Heart Association and American College of Cardiology (published in 2026) recommend getting LDL below 55 mg/dL.

These risk-adjusted targets also apply to non-HDL cholesterol. Adults at intermediate risk (a 5% to 10% chance of a cardiovascular event in the next 10 years) should aim for non-HDL below 130 mg/dL. Those at high risk should target below 100 mg/dL, and those at very high risk should aim for below 85 mg/dL. Your doctor calculates your 10-year risk using factors like age, blood pressure, smoking status, and family history.

If you’re healthy and have no major risk factors, an LDL between 100 and 130 mg/dL is often considered acceptable, though doctors still generally prefer to see it below 100 because clinical trials have shown benefits from keeping it in that lower range even for prevention.

HDL: Higher Is Usually Better

Unlike LDL, where lower is better, HDL cholesterol protects your heart by clearing excess cholesterol from your bloodstream. An HDL of 60 mg/dL or above is considered heart-protective. The risk thresholds differ by sex: below 40 mg/dL is concerning for men, while below 50 mg/dL is concerning for women. This gap exists because estrogen tends to raise HDL levels, so premenopausal women typically run higher than men.

There is an upper limit, though. Extremely high HDL, above 100 mg/dL, doesn’t appear to offer extra protection and may in rare cases signal other health issues. For most people, the practical focus is on making sure HDL isn’t too low rather than chasing very high numbers.

Why Triglycerides Matter

Triglycerides often get less attention than LDL and HDL, but levels above 150 mg/dL independently raise your risk of heart disease. Very high triglycerides, above 500 mg/dL, also put you at risk for pancreatitis, a painful inflammation of the pancreas. Triglycerides tend to spike from excess sugar, refined carbohydrates, alcohol, and excess calories in general, so they often respond well to dietary changes and exercise even without medication.

Reading Your Results in Context

A cholesterol panel is a snapshot, not a verdict. Your numbers fluctuate based on what you’ve eaten recently, how much you’ve been exercising, stress, illness, and even the time of year (cholesterol tends to run slightly higher in winter). Fasting for 9 to 12 hours before a blood draw gives the most accurate triglyceride reading, though total cholesterol, LDL, and HDL are less affected by recent meals.

No single number on the panel tells the full story. Someone with a total cholesterol of 210 mg/dL might actually have a favorable profile if most of that is HDL. Conversely, a total cholesterol of 190 mg/dL can be misleading if LDL is high and HDL is very low. That’s why looking at the ratio between your components, and understanding your personal risk factors, matters more than fixating on any one line of the report.