Difference Between Atmospheric and Barometric Pressure

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Difference Between Atmospheric and Barometric Pressure. In this article, you will read about what is atmospheric pressure, what is barometric pressure, what is the main difference between atmospheric pressure and barometric pressure, and a comparison between atmospheric pressure vs barometric pressure.

Both the terms atmospheric pressure and barometric pressure are related to each other, whenever we talk about pressure. There is a slight difference between them in terms of their usage. Here we will first understand the main difference between atmospheric pressure and barometric pressure and then differentiate between them in detail.

What Is The Mian Difference Between Atmospheric Pressure And Barometric Pressure?

The main difference between atmospheric pressure and barometric pressure is that the:

-Atmospheric pressure is the pressure that is exerted by the atmosphere.

-Barometric pressure is the pressure that is measured by a barometer.

What Is Atmospheric Pressure?

Difference Between Atmospheric and Barometric Pressure - chart 1
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The amount of air in the atmosphere is always exerting pressure on us. This type of pressure is known as ‘Atmospheric Pressure’. The standard international (SI) unit for measuring atmospheric pressure is the pascal (Pa).

The pressure of one pascal is very little, however, we experience thousands of kilopascals on a daily basis. For example, the human punch has a pressure of about 150-550 kilopascals (kPa). The atmospheric pressure is low at higher altitudes because there is less air exerting on us.

What Is Barometric Pressure?

Difference Between Atmospheric and Barometric Pressure - chart 2
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Barometric pressure is the pressure that is measured by a barometer. It is a device that is used to measure atmospheric pressure. There are various types of barometers. The mechanism can be different for each barometer, but they all measure atmospheric pressure. There are various units that are used to measure pressure. But, here it depends on the device that is measuring the atmospheric pressure.

For example:

-Mercury Barometer is a barometer that has a column of mercury. The mercury rises when there is an increase in atmospheric pressure. It measures the pressure in units of millimetres of mercury (mmHg).

-Aneroid Barometer is a barometer that has a piece of metal. This metal changes its dimension when there is a change in atmospheric pressure. It measures the atmospheric pressure in the unit of Bar. 1 Bar is equal to 1 atm.

Comparison Between Atmospheric Pressure And Barometric Pressure:

-Atmospheric pressure is the pressure exerted by the atmosphere.
-Barometric pressure is the atmospheric pressure measured by the barometric.

featured image source: www.inc.com

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