How to calculate blood pressure
How To Calculate Blood Pressure

How To Calculate Blood Pressure

When you measured the blood pressure by a medical officer, you may just be told that how much your blood pressure score is and includes normal, high, or low. Yes only that, but do you actually know what the outcome of the pressure is? Or how is blood pressure called normal?

How To Calculate Blood Pressure

Everyone would want to have normal blood pressure to avoid chronic diseases, especially heart disease. Therefore, nowadays many people are deliberately buying automatic blood pressure tools in order to measure blood pressure anytime and anywhere without having to check into health workers. Then, when you see a blood pressure figure, what do you know about the number? How To Calculate Blood Pressure?

When you see there is an automatic blood pressure tool, there are two major numbers listed there, namely the first and second rows. The first line is called the systolic number while the second line is a diastolic number. Both numbers are not just numbers, but describe the condition of your blood flow and your heart function at the time.

How to calculate average arterial blood pressure

Understanding how to calculate blood pressure

In the health world, a person’s systolic blood pressure is a blood pressure in the arteries when the heart pulses, while diastolic blood pressure is a blood pressure during a “resting” interval between the heartbeats. Although both are important, and stand-alone, the size is also important to know the “average” blood pressure for certain uses (such as determining how well the blood flow reaches the organ). This value, called an average arterial blood pressure or mean arterial pressure (MAP) can be easily calculated using the equation MAP = (2 (DBP) + SBP) / 3, with DBP = diastolic pressure or diastolic blood pressure, and SBP = systolic pressure or systolic blood pressure.

Read also: How to lower resting heart rate.

Just like systolic and diastolic blood pressure, there is a specific range of MAP values that are generally considered normal or healthy. Although some healthy people have a MAP value outside that range, this value often signifies threats of potentially harmful cardiovascular conditions. In general, the value of the MAP between 70-110 mm Hg is considered normal

Understanding blood pressure Check results

After knowing How To Calculate Blood Pressure, you must understanding about blood pressure check results.

There are two numbers listed on the blood pressure gauge. The figure above shows the systolic pressure, while the number below indicates diastolic pressure.

Blood pressure levels are measured in a scale of mmHg or millimeters of mercury. In the medical world, mercury is used as a standard measuring unit for blood pressure. The results of blood pressure screening can be categorized as follows:


Blood pressure levels less than 120/80 mmHg can be said to be normal. If your blood pressure is normal, maintain it by eating with balanced nutrients and exercising regularly.


Your blood pressure can fit into this category if it ranges between 120-129 mmHg systolic and 80 mmHg diastolic. If not resolved immediately, prehypertension can be risky to be symptomatic hypertension.

First Degree Hypertension.

Your blood pressure ranges from 130-139 mmHg of systolic or 80-89 mmHg diastolic, including first degree hypertension. However, you may not experience a first degree of hypertension If this test is done once. The doctor will repeat the check to confirm.

Second Degree Hypertension.

You can be diagnosed with 2nd degree hypertension when your blood pressure is constantly above 140/90 mmHg. If your blood pressure reaches this limit, your doctor will prescribe medications to lower the high blood pressure that needs to be consumed regularly, as well as advise you apply a healthier lifestyle.

Hypertensive crisis

If your blood pressure reaches more than 180/120 mmHg, wait five minutes and then repeat your check. If your blood pressure is still the same, then you should go to the doctor because it is already in the category of hypertensive crisis. Beware of other symptoms that may accompany pain in the chest, shortness of breath, back pain, weakness or numbness, changes in vision, or difficulty in speech.

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Conversely, if your blood pressure is often under 90/60 mmHg, you may experience low blood pressure or hypotension. Hypotension can also be accompanied by vertigo, because the less supply of oxygen in the blood. This condition can be high risk to health and should be handled immediately by the doctor.

Read also: 15 Low Blood Pressure Diet Tips.

Thank you very much for reading How To Calculate Blood Pressure, hopefully useful.

Last Updated on March 2, 2022 Reviewed by Market Health Beauty Team

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