Conversion of standard pressure unit, which is atmosphere (atm) to metric unit of pressure to Pascal (Pa) is done by multiplying pressure with the conversion ratio. One atmosphere is equal to 101,325 pascals, so a simple formula is used to convert from atmosphere to Pascal, which is given by

Pascals = atmopsheres * 101,325

Pressure exerted represented in Pascal is equivalent to the atmospheres multiplied with 101,325.

For example, to convert 4 Atmosphere to Pascal using the above formula can be done like:

4 atm = ( 4 * 101,325) = 405,300 pa

Pascal and atmosphere, both are for measuring pressure where atm is the single standard unit of pressure and Pa is the metric unit of pressure.

Atmosphere is considered as a reference measurement of pressure, which is equal to 101,325 Pascal or 1,013,250 dynes. Atmosphere is defined as the amount of pressure 760 millimeters of mercury at standard gravity at 0⁰ Celsius, which was later updated to be equal to 1,013,250 dynes. The abbreviation used for atmospheres is atm, for example 2 atmosphere can be written as 2 atm.

Pascal is defined as the pressure of one newton exerted per square meter. Pascal is the SI unit of pressure used in the metric system. The abbreviation used for Pascal is Pa, for example 2 Pascal can be represented as 2 Pa.

Pascal is defined using the formula,

1 Pa = 1 N/m² 

Pressure is equal to the amount of force in Newton divided by the area in square meters.

Pressure is defined as the measure of force against a given surface, which is generally expressed as a force applied per unit area. The Pascal is the unit of pressure, which is used for quantifying stress, internal pressure, Young’s modulus and tensile strength. The unit is named after Blaise Pascal. The common multiple units of Pascal are hectopascal ( 1 HPA = 100 PA), that is equal to one millibar, and kilopascal ( 1 KPA = 1000 PA) that is equal to one centibar.

Atmosphere is a unit of pressure, that is equal to 1. 01325 bars, which is used as a reference or standard of pressure, which is equivalent to the atmospheric pressure at sea level.

There are various examples that show the relation between atm to pa. This example shows the conversion process of the pressure units Pascal (pa) to atmospheres. Pascal, which is a SI unit used to refer newtons per square meter, whereas atmosphere was originally a unit of, which is related to the pressure of air at sea level, that was later defined as 1.01325 * 10⁵ pa.

Pa to atm conversion sum:

1. The air pressure outside a jet plane is approximately around 2.3 * 10⁴ , what is the pressure exerted in atmospheres?

Solution:

1 atm = 1.01325 * 10⁵ Pa

This is recommended to set up the conversion rate, for cancelling out the desired units, in this case pa should be the remaining unit.

Pressure in atm = ( pressure in pa) * (1 atm/ 1.01325 * 10⁵ Pa)

Pressure in atm = ( 2.3 * 10⁴  / 1.01325 * 10⁵ Pa)

Pressure in atm = 0.203 atm

Therefore, the air pressure in cruising altitude is 0.203 atm.

1. How to convert atmosphere (atm) to Pascal ( Pa)

Example:

How much Pascals are equivalent to 83.97 Atmospheres?

Answer: 1 atm = 101325 pa

   83.97 atm = x pa

Let us assume x to be the answer,

X equals 83.97 times 101325 over 1 which is,

X = 83.97 *101325 / 1 = 8508260. 25 pa

Answer: 8502860.25 pa is aqual to 83.97 atm.

1. How to convert 72.35 atm to pa?

Answer: 1 atm = 101325 pa

   72.35 atm = y pa

Let us assume, y to be the answer,

Y equals 72.35 times 101325 over 1, that is,

Y = 72.35* 101325 / 1 = 7,330,863.75 pa

Answer: 7,330,863.75 pa is equal to 72.35 atm.

For conversion, we assume that it takes place in between atmosphere (standard) and pascal. The derivation provides the SI unit of pressure to be Pascal. 1 atm equals 101325 pa. So, the values of atm to pa is,

1 atm to pascal = 101325. 01 pascal

2 atm to pascal = 202650. 02 pascal

3 atm to pascal = 303975. 03 pascal

4 atm to pascal = 405300. 04 pascal

5 atm to pascal = 506625. 05 pascal

6 atm to pascal = 607950. 06 pascal

7 atm to pascal = 709275. 07 pascal

8 atm to pascal = 810600. 08 pascal

9 atm to pascal = 911925. 09 pascal

10 atm to pascal = 1013250 .1 pascal

Prefix for atmosphere is : atm

Prefix for pascal is : pa

Tools used to convert technical unit pressure, exchange reading in atmosphere unit atm to pascals unit pa, for an equivalent measurement result, which are different units having the identically similar total physical value, which is equal to the proportional sectional parts found when divided or multiplied.

The atmospheric pressure is defined as the force, which is forced by the weight of the atmosphere of earth that is measured using barometer. Atmosphere is used as a reference condition for chemical and physical properties. This is exactly equal to 1013250 dynes per square centimeter ( 101325 pa). 1 pa is equal to 1 N/m ² that is equal to 10^-5 bar which is equal to 1.0197* 10⁵ at which is equal to 9.8692 * 10^-6 atm that is equivalent to 7.5006 * 10³ torr.

Pascal, which is the unit of stress and pressure in metre-kilogram-second system. This unit is inconveniently smaller and because of that kilopascal (kpa), which is 1000 Newtons per square meter is generally used. Example can be cited where standard atmospheric pressure ( 1 atm) can be defined as 101.325 kpa.

1 atm is defined as 101325 Pascal. The atmospheric pressure (atm) is converted to 1 pa by multiplication with the value of pressure by 101325, which changes the value of atmospheric pressure, which is the standard unit of pressure to Pascal, which is the metric unit of pressure.