Non-HDL Cholesterol Calculator + Normal Range

By AskDr Editorial Team · Medically reviewed against cited guidelines · Last reviewed October 15, 2026

Non-HDL cholesterol is total cholesterol minus HDL. It captures cholesterol in all atherogenic particles (LDL, VLDL, IDL, Lp(a)) and does not require fasting.

On this page

Non-HDL cholesterol in brief
How to calculate non-HDL cholesterol
Why non-HDL cholesterol matters
Non-HDL cholesterol targets and ranges
Ranges by age and sex
Factors that affect non-HDL cholesterol
Non-HDL cholesterol versus LDL and apoB
Non-HDL cholesterol in specific conditions
How much can lifestyle changes lower non-HDL cholesterol?
Using non-HDL cholesterol in practice
Reading your lipid report: an example
Genetic causes of high non-HDL cholesterol
When to see a doctor
Frequently asked questions

Non-HDL cholesterol in brief

Non-HDL cholesterol is simply your total cholesterol minus your HDL cholesterol. It represents the cholesterol carried by every lipoprotein particle that can contribute to clogged arteries – LDL, very-low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), remnant particles and lipoprotein(a). Because it captures all of these, many experts consider non-HDL cholesterol a better single measure of cardiovascular risk than LDL alone, particularly in people with high triglycerides, diabetes or obesity.

The calculator above subtracts HDL from total cholesterol and classifies the result. It works in mg/dL or mmol/L: to convert, divide mg/dL by 38.67, or multiply mmol/L by 38.67. Both inputs must use the same unit.

For most adults, a non-HDL cholesterol below 130 mg/dL (3.4 mmol/L) is desirable. UK guidance uses a slightly different benchmark: NICE recommends that people taking statins aim for a reduction of more than 40% in non-HDL cholesterol from their baseline level.

One practical advantage stands out: non-HDL cholesterol does not require fasting, and it is just as accurate in a non-fasting sample, because neither total cholesterol nor HDL changes meaningfully after a normal meal.

How to calculate non-HDL cholesterol

Non-HDL-C = total cholesterol − HDL cholesterol

Worked examples:

Total cholesterol	HDL	Non-HDL (mg/dL)	Non-HDL (mmol/L)	Category
180 mg/dL	60 mg/dL	120	3.10	Desirable
210 mg/dL	55 mg/dL	155	4.01	Above desirable
240 mg/dL	48 mg/dL	192	4.97	Very high
260 mg/dL	40 mg/dL	220	5.69	Very high

In mmol/L: total cholesterol 5.4 mmol/L and HDL 1.3 mmol/L give a non-HDL cholesterol of 4.1 mmol/L (159 mg/dL).

Why non-HDL cholesterol matters

All atherogenic particles count

Atherosclerosis – the build-up of fatty plaques in the arteries – is driven by lipoprotein particles that contain apolipoprotein B (apoB). Each LDL, VLDL, IDL and lipoprotein(a) particle carries exactly one apoB molecule. These particles can cross into the artery wall, where cholesterol is deposited. HDL particles, in contrast, do not contain apoB and are not considered atherogenic.

LDL cholesterol measures only the cholesterol in LDL particles. In people with high triglycerides, a substantial amount of cholesterol is carried in VLDL and remnant particles, which LDL-C misses. Non-HDL cholesterol includes it.

Evidence from large studies

Large studies have found that non-HDL cholesterol predicts cardiovascular events at least as well as LDL cholesterol. A 2019 analysis in The Lancet, pooling data from almost 400,000 people in 38 cohorts across Europe, Australia and North America, showed a strong, graded relationship between non-HDL cholesterol and long-term cardiovascular risk, starting from young adulthood. The authors estimated that lowering non-HDL cholesterol early would yield the greatest long-term benefit.

Practical advantages

No fasting needed: results are reliable after eating.
No calculation assumptions: unlike calculated LDL, non-HDL does not rely on equations involving triglycerides.
Useful at any triglyceride level: still valid when triglycerides are too high for LDL to be calculated.
Cheap and universal: it comes from a standard lipid panel at no extra cost.

Non-HDL cholesterol targets and ranges

Population categories

The categories used by the calculator follow the US National Lipid Association and earlier National Cholesterol Education Program guidance, which set non-HDL targets 30 mg/dL above the corresponding LDL goals:

Non-HDL (mg/dL)	Non-HDL (mmol/L)	Category
Below 130	Below 3.4	Desirable
130–159	3.4–4.1	Above desirable
160–189	4.1–4.9	High
190 or higher	4.9 or higher	Very high

The 30 mg/dL (0.8 mmol/L) difference reflects a normal VLDL cholesterol level when triglycerides are below about 150 mg/dL.

Targets by cardiovascular risk

The 2019 ESC/EAS dyslipidaemia guidelines give secondary non-HDL targets for people whose LDL goals are set by risk:

Risk category	LDL-C goal	Non-HDL-C goal
Very high risk	below 55 mg/dL (1.4 mmol/L)	below 85 mg/dL (2.2 mmol/L)
High risk	below 70 mg/dL (1.8 mmol/L)	below 100 mg/dL (2.6 mmol/L)
Moderate risk	below 100 mg/dL (2.6 mmol/L)	below 130 mg/dL (3.4 mmol/L)

NICE in the UK uses non-HDL cholesterol rather than LDL for monitoring: a reduction of more than 40% from baseline is the goal for primary and secondary prevention with statins. NICE's 2023 lipid guidance update also recommends considering a target non-HDL cholesterol below 2.5 mmol/L (97 mg/dL) for people with established cardiovascular disease.

Ranges by age and sex

Non-HDL cholesterol rises with age, especially in women after menopause:

Group	Typical values
Children and adolescents	Acceptable below 120 mg/dL (3.1 mmol/L); borderline 120–144; high 145 mg/dL (3.8 mmol/L) or above
Young adults (20–24)	Acceptable below 150 mg/dL (3.9 mmol/L); high 190 mg/dL (4.9 mmol/L) or above
Adult men	Often higher than women before age 50
Adult women	Lower before menopause; similar to or higher than men's after

The paediatric and young-adult cut-offs come from the US National Heart, Lung, and Blood Institute's 2011 expert panel on cardiovascular health in children. Because non-HDL cholesterol does not require fasting, it is the recommended screening test for children in the US.

Factors that affect non-HDL cholesterol

Things that raise it

Genetics: familial hypercholesterolaemia, familial combined hyperlipidaemia and high lipoprotein(a)
Diet: saturated fat, trans fat and, for triglyceride-rich particles, excess refined carbohydrate, sugar and alcohol
Excess body weight, particularly abdominal fat
Insulin resistance and type 2 diabetes, which raise triglyceride-rich lipoproteins
Hypothyroidism, kidney disease (especially nephrotic syndrome) and some liver diseases
Medicines such as certain steroids, retinoids, antipsychotics, protease inhibitors and some immunosuppressants
Physical inactivity

Things that lower it

Statins, which typically lower non-HDL cholesterol by roughly 30–45% depending on dose
Ezetimibe, PCSK9 inhibitors, inclisiran and bempedoic acid
Weight loss – each kilogram lost reduces triglycerides and modestly reduces non-HDL
Less saturated fat, more unsaturated fat and fibre
Reducing alcohol and sugar, which mainly lowers the triglyceride-rich component
Regular physical activity

Non-HDL cholesterol versus LDL and apoB

Measure	What it captures	Needs fasting?	Main use
LDL cholesterol	Cholesterol in LDL particles only	No (usually)	Primary treatment target in most guidelines
Non-HDL cholesterol	Cholesterol in all apoB-containing particles	No	Secondary target; primary in UK monitoring
ApoB	Number of atherogenic particles	No	Useful when triglycerides are high or LDL and non-HDL disagree

When triglycerides are normal, LDL and non-HDL tell a similar story. When triglycerides are high, non-HDL cholesterol and apoB are more informative. If your LDL is at goal but your non-HDL is not, it usually means excess cholesterol is being carried by triglyceride-rich particles, which may prompt attention to diet, weight, glucose control and alcohol.

What the gap between non-HDL and LDL tells you

The difference between non-HDL cholesterol and LDL cholesterol is approximately the cholesterol carried in VLDL and remnant particles, sometimes called remnant cholesterol. A large gap – for example, non-HDL 190 mg/dL with LDL 120 mg/dL – indicates a lot of cholesterol in triglyceride-rich particles. Studies from Copenhagen and elsewhere have linked high remnant cholesterol to cardiovascular risk independent of LDL, which is one reason non-HDL captures risk that LDL can miss.

Non-HDL cholesterol in specific conditions

Diabetes and insulin resistance

People with type 2 diabetes and insulin resistance often have a characteristic lipid pattern: raised triglycerides, low HDL and LDL that looks "normal" but is made up of many small, dense particles. In this situation, LDL cholesterol can underestimate risk, while non-HDL cholesterol and apoB better reflect the number of atherogenic particles. The American Diabetes Association recommends statin therapy for most adults with diabetes aged 40–75, and non-HDL cholesterol is a useful way to track whether the overall atherogenic burden is falling. Improving glucose control often lowers triglycerides and therefore non-HDL cholesterol. If you have diabetes, our A1C calculator helps put your glucose control in context.

Chronic kidney disease

Chronic kidney disease raises cardiovascular risk and often causes raised triglycerides and remnant cholesterol. KDIGO recommends statins (with or without ezetimibe) for most adults with CKD aged 50 and over who are not on dialysis. Non-HDL cholesterol is a practical monitoring measure in this group because results are reliable without fasting.

Hypothyroidism

An underactive thyroid reduces the clearance of LDL particles, raising LDL and non-HDL cholesterol. Guidelines recommend checking thyroid function before starting lipid-lowering treatment if there are symptoms or other reasons to suspect thyroid disease, since treating hypothyroidism can lower cholesterol substantially.

Pregnancy

Total cholesterol, triglycerides and non-HDL cholesterol rise progressively during pregnancy, especially in the third trimester, as part of normal physiology. Lipid testing is not usually done in pregnancy unless there is a specific reason, and statins are generally stopped before conception or as soon as pregnancy is confirmed.

How much can lifestyle changes lower non-HDL cholesterol?

Lifestyle changes on their own typically lower non-HDL cholesterol by about 5–20%, depending on the starting diet, weight and genetics. Approximate effects reported in studies include:

Change	Typical effect
Replacing saturated fat with unsaturated fat	LDL and non-HDL fall by around 5–10%
Adding 5–10 g a day of soluble fibre (oats, barley, psyllium, beans)	LDL falls by about 5%
Plant sterols or stanols, 1.5–3 g a day	LDL falls by about 7–12%
Losing 5–10% of body weight	Triglycerides fall by 20% or more; non-HDL falls modestly
Cutting alcohol and added sugar	Triglycerides and remnant cholesterol fall, sometimes considerably
Regular aerobic exercise	Triglycerides fall; non-HDL falls slightly

These effects add up when combined. For people at high risk or with genetic lipid disorders, medicines are usually needed as well.

Using non-HDL cholesterol in practice

Get a standard lipid panel – fasting is not needed.
Calculate non-HDL cholesterol with the calculator above, or read it from your report (many laboratories now report it).
Assess your overall risk with your clinician, using a risk calculator such as the US PREVENT equations, QRISK3 in the UK or SCORE2 in Europe.
Set a goal based on risk – a target value or a percentage reduction.
Recheck about 2–3 months after starting or changing treatment, then annually.

Reading your lipid report: an example

Suppose a 52-year-old man's non-fasting lipid report shows total cholesterol 6.2 mmol/L, HDL 1.0 mmol/L, triglycerides 2.6 mmol/L and a calculated LDL of 4.0 mmol/L.

Non-HDL cholesterol is 6.2 − 1.0 = 5.2 mmol/L (201 mg/dL), in the very high category.
The gap between non-HDL (5.2) and LDL (4.0) is 1.2 mmol/L, which reflects a fair amount of cholesterol in triglyceride-rich particles.
The total-to-HDL ratio is 6.2, which is also high.

His clinician would assess his 10-year cardiovascular risk, ask about family history, check glucose (or A1C), kidney and liver function and thyroid function, and discuss diet, alcohol, weight and activity. If a statin were started, NICE would look for non-HDL cholesterol to fall by more than 40% – to about 3.1 mmol/L or lower – at a check two to three months later.

Genetic causes of high non-HDL cholesterol

Very high non-HDL cholesterol can be inherited:

Familial hypercholesterolaemia (FH) mainly raises LDL. It affects around 1 in 250–300 people and causes early heart disease if untreated. Finding one person with FH should prompt testing of their relatives.
Familial combined hyperlipidaemia is more common and causes raised LDL, triglycerides or both, often varying over time within the same person and family.
Lipoprotein(a) is largely genetically determined and is included in non-HDL cholesterol. High Lp(a) raises cardiovascular risk independently of other lipids. European guidelines recommend measuring it at least once in adulthood.

When to see a doctor

Talk with a clinician if your non-HDL cholesterol is 160 mg/dL (4.1 mmol/L) or higher, and especially if it is 190 mg/dL (4.9 mmol/L) or higher, which may indicate an inherited lipid disorder. Seek advice too if you have diabetes, kidney disease, a family history of early heart disease, or if your triglycerides are above 500 mg/dL (5.6 mmol/L). If you are already on treatment and your non-HDL is not falling as expected, discuss adherence, dose and additional options.

Seek emergency care for chest pain, shortness of breath, sudden weakness or numbness, or trouble speaking.

Frequently asked questions

What is a good non-HDL cholesterol level?

Below 130 mg/dL (3.4 mmol/L) is desirable for most adults. People at high or very high cardiovascular risk usually aim for below 100 mg/dL (2.6 mmol/L) or 85 mg/dL (2.2 mmol/L).

Is non-HDL cholesterol better than LDL?

It captures more atherogenic particles and works without fasting, and it predicts risk at least as well as LDL. Most guidelines still use LDL as the primary target and non-HDL as a secondary one.

Can I calculate non-HDL cholesterol from mmol/L results?

Yes. Subtract HDL from total cholesterol in the same unit. For example, 5.4 − 1.3 = 4.1 mmol/L.

Do I need to fast?

No. Non-HDL cholesterol is reliable in non-fasting samples.

Why is my non-HDL high when my LDL is normal?

Probably because your triglycerides are raised, so more cholesterol is carried by VLDL and remnant particles. Weight, diet, alcohol, diabetes control and some medicines influence this.

Does a high HDL make up for high non-HDL cholesterol?

Not reliably. Higher HDL is associated with lower risk at population level, but medicines that raise HDL have not reduced heart attacks. Non-HDL cholesterol remains the more important number.

Does non-HDL cholesterol include triglycerides?

Not directly. It includes the cholesterol carried in triglyceride-rich particles, so it rises when those particles increase, but triglycerides themselves are measured separately.

Can non-HDL cholesterol be too low?

Low values achieved with treatment have not been associated with harm in large trials. Unexpectedly low values without treatment may occasionally reflect hyperthyroidism, malabsorption, liver disease or rare genetic conditions.

How often should I check non-HDL cholesterol?

Adults with low risk are often tested every four to six years. People on treatment are usually rechecked two to three months after a change and then once a year.

Is non-HDL cholesterol on my lab report?

Many laboratories now report it automatically. If yours does not, you can calculate it yourself by subtracting HDL from total cholesterol, as the calculator does.

Why does my result differ slightly from my laboratory's?

Small differences usually come from rounding. Laboratories may round total cholesterol and HDL before subtracting, or report results to one decimal place in mmol/L. Differences of 1–2 mg/dL (0.05 mmol/L) are not clinically meaningful.

Does non-HDL cholesterol change with the seasons?

Slightly. Studies have found cholesterol levels tend to be a little higher in winter than in summer, by a few percent. This is one reason to compare results taken at similar times of year when small changes matter.

Can children have high non-HDL cholesterol?

Yes. Children with familial hypercholesterolaemia or obesity can have raised non-HDL cholesterol. US guidelines use non-HDL as the main screening measure in children because it does not require fasting, with values of 145 mg/dL (3.8 mmol/L) or above considered high.

Non-HDL Cholesterol Calculator