Cholesterol Ratio Calculator

Cholesterol Ratio Calculator

You can use this cholesterol ratio calculator to make a rapid self-diagnosis. It calculates the most common cholesterol indicators (LDL/HDL, triglycerides/HDL, and total cholesterol/HDL ratio) based on your blood test results, making it simple to estimate heart disease risks and your overall health state. 

To find out how to compute these cholesterol ratios, continue reading or use our BMI calculator. Keep in mind that this calculator is not a substitute for medical advice! If the results are alarming, make an appointment with your doctor.

Divide your total cholesterol by your HDL level to get your cholesterol ratio. For example, your cholesterol ratio is 2.2 if your total cholesterol is 180 and your HDL is 82. According to the American Heart Association (AHA), you should try to keep your cholesterol ratio below 5, with 3.5 being optimum. Here’s more information about the consequences of having a high cholesterol level.

If you’ve ever had your cholesterol checked, you’re probably familiar with the process: you skip breakfast, have a blood test, and then wait a few days for your cholesterol results. Your total cholesterol is definitely something you’re familiar with. You want to keep this figure below 200.

Cholesterol Ratio Calculator Formula

There are three signs that accurately predict your risk of heart disease. They’re all dubbed cholesterol ratios because they’re built as ratios of the aforementioned blood values. Do you know what a good cholesterol ratio is? We can find the following numbers with this total cholesterol calculator:

  • Simply said, the LDL HDL ratio is the LDL level divided by the HDL level. One of the most widely used indicators of heart disease risk is the LDL HDL ratio. Below 2.0 is ideal; below 5.0 is good; above 5.0 is excessive.
  • Divide your triglyceride level by your HDL level to get your triglyceride HDL ratio. It’s a less well-known metric, but it’s also used to assess the risk of a heart attack or stroke. The typical range for the triglyceride HDL ratio as measured in mg/dL is high: 4.0 – 6.0 , too high: 6.0 or above ideal: 2.0 or below.
  • The total cholesterol HDL (TC HDL) ratio is calculated by dividing total cholesterol by HDL. The cholesterol HDL ratio is the worst of the three indications, and the American Heart Association advises against using it for diagnosis. Even so, you can use this figure to gain a rough sense of your health. ideal: less than 3.5 good: less than 5.0 bad: over 5.0

Total Cholesterol HDL Ratio Calculator

Our cholesterol ratio calculator considers four fundamental blood test results. The National Heart, Lung, and Blood Institute of the National Institutes of Health set all the guideline limits. You just need to enter three of your results because the formula states they are interdependent:

Total cholesterol= HDL+ LDL+ 0.2 X triglycerides

  1. Total cholesterol is merely a snapshot of your cholesterol status. It may be deceptive since it combines the amounts of good and bad cholesterol in your blood and may not provide enough information about the risks of heart disease.
  2. Desirable: a concentration of less than 200 mg/dL
  3. 200 – 239 mg/dL is borderline high.
  4. 240 mg/dL and above is high.
  5. The “good” cholesterol in your blood is HDL (high-density lipoprotein). In general, it is a kind of cholesterol that is transferred from various regions of the body to the liver, where it is metabolized and excreted with bile acids. As a result, this is the only form of cholesterol that should be kept elevated. HDL levels in women are greater than in men.
  6. 60 mg/dL or higher is ideal.
  7. 40-59 mg/dL (borderline)
  8. Heart disease risk: less than 40 mg/dL
  9. LDL (low-density lipoprotein) is the “bad” cholesterol that builds up in your arteries and can lead to significant health problems like heart attacks and strokes. We should keep LDL cholesterol levels as low as possible. Remember that if your LDL level is high, see a doctor to find out whether there are any risk factors for heart disease. Based on total cholesterol, HDL, and triglyceride levels, use our LDL calculator to calculate its value.
  10. Optimal: a concentration of less than 100 mg/dL
  11. 100 – 129 mg/dL (around optimal/above optimal)
  12. 130-159 mg/dL is borderline high.
  13. 160 – 189 mg/dL is high.
  14. Extremely high: 190 mg/dL and above,

Cholesterol and Its Consequences

Humans and animals could not live without cholesterol. It’s a structural component of cell membranes that are required for the creation of steroid hormones, bile acids, and vitamin D. Furthermore, you should know there are occasionally clinical instances where cholesterol levels are abnormally low, but this is not common. 

We refer this to as hypocholesterolemia. Hyperthyroidism (high thyroid hormone production), adrenal insufficiency, liver disorders, depression, brain hemorrhage, or cancer are the most common causes. SLOS (Smith–Lemli–Opitz syndrome) is a genetic aberration in the mechanism of cholesterol synthesis that causes it in sporadic occurrences.

High cholesterol levels, or hypercholesterolemia, on the other hand, can cause serious health complications. Atherosclerosis is the most serious complication of excessive cholesterol. It is a condition in which the interior of an artery narrows because of plaque buildup. Patients normally have no symptoms at first, but it eventually leads to:

  • Coronary artery disease (CAD) is a type of cardiovascular illness (including heart attack)
  • Stroke
  • Artery disease of the periphery
  • Renal failure that has been present for a long time

Therefore, it’s critical to monitor and control your cholesterol levels in order to reduce your risk of atherosclerosis and its repercussions!

Total Cholesterol HDL Ratio Chart

3.5 – 4.43.4 – 4.1
4.5 – 7.24.2 – 5.7
7.2 – 16.55.8 – 9
Chol HDL Ratio

LDL, HDL and Cradiac Risk Ratio Chart

MaleFemaleCardiac Risk
<1.1<1.5very low risk
nillnillLow risk
1.2 – 4.91.6 – 4.1Average risk
5 – 7.14.2 – 5.5Moderate risk
>7.2>5.6High risk
LDL/HDL Ratio Chart

Causes of High Cholesterol

Are you bothered about the question of what is a good cholesterol ratio? As previously said, excessive cholesterol levels can have a significant impact on our general health. As a result, it’s important to understand what causes high cholesterol. Thyroid insufficiency, type 2 diabetes, and obesity are all common causes of hypercholesterolemia. Genetic illnesses could also cause it like familial hypercholesterolemia, which isn’t all that uncommon – roughly 0.3 percent of the population has mutations that produce high LDL cholesterol!

Your lifestyle, however, is the most essential factor determining your lipid and cholesterol levels! Diet influences cholesterol levels, although the magnitude of that effect varies by patient. Does Dietary Cholesterol Matter? Results of a Meta-Analysis the consumption of high-cholesterol foods raises serum cholesterol levels, according to a study published in 2016. Trans fatty acids also have a high atherogenic potential, as they lower HDL cholesterol (good cholesterol) while raising LDL cholesterol (the bad one).


Cholesterol exists in a variety of types, some of which are beneficial and others that are harmful. A variety of variables can affect the amount of cholesterol in your blood, including heredity. You’re more likely to have high cholesterol if a close relative has it. Many lifestyle factors, including nutrition and activity, impact cholesterol levels. Based on your blood test results, our cholesterol ratio calculator determines the most common cholesterol indicators (LDL/HDL, triglycerides/HDL, and total cholesterol/HDL ratio).


What are the cholesterol ratios?

Three cholesterol ratios exist, showing three different aspects of your cardiovascular system’s health.
LDL HDL ratio is the ratio of LDL to HDL cholesterol levels.
Total cholesterol divided by triglyceride HDL ratio; Triglyceride HDL ratio – triglyceride level divided by HDL level Total cholesterol (TC) divided by HDL level is the HDL ratio.
The last is the most common, thus when you hear someone mention a single cholesterol ratio, they are most likely referring to the TC HDL ratio.

Is it possible to have a cholesterol ratio that is too low?

Yes, a cholesterol ratio that is too low is possible. Most people have difficulties with too much total cholesterol, thus this is an unusual occurrence. Due to extraordinarily high HDL levels or low total and LDL cholesterol levels, the ratio can be low. Thyroid disease, metabolic abnormalities, or heredity are to blame for the scenario.

What is the formula for calculating the cholesterol ratio in mmol/L?

Simply make sure that both total cholesterol and HDL cholesterol are in the same unit to determine your cholesterol ratio in mmol/L. Then you divide the total cholesterol number by the HDL cholesterol number, as is customary.
Total cholesterol (mmol/L)/HDL-cholesterol (mmol/L) Cholesterol ratio in mmol/L

Which of the cholesterol numbers is the most crucial?

If you’re a woman, your HDL (“good”) cholesterol should be at least 50 mg/dL, and if you’re a man, it should be at least 40 mg/dL. According to Mosca, the ideal LDL is less than 100. Your doctor may prefer your LDL to be closer to 70 if you have additional major risk factors, such as pre-existing cardiovascular disease or diabetes.

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