PRESSURE CONVERSION TABLE | Bar, Pa, Kpa & Psi

Last Updated: August 16, 2023, by

Pressure is a physical quantity that defines the force exerted per unit area, and depending on the application or our geographical location, it can be measured in different units, Bar [Bar], Pa [Pascal], Kpa [Kilopascal], and Psi [Pounds per Square Inch].

When converting between different units of pressure, having a conversion table with factors and explanations of each unit of measurement can be incredibly helpful.

This article will provide a comprehensive guide to pressure unit conversion, including a conversion table of up to 50 bar that can be downloaded.

🟩 Pressure Conversions

To help easily convert between different units of pressure, we’ve compiled a table of pressure conversions that lists the factors for Bar, Pa, Kpa, and Psi from 0 to 50 bar, this can be found further in the article.

The below table shows the conversion factors for each:

Bar
[Bar]
Pascal
[pa]
Kilopascal
[Kpa]
Pounds per Square Inch
[Psi]
Bar
[Bar]
1100,000
[multiply by]
100
[multiply by]
14.50
[multiply by]
Pascal
[pa]
100,000
[divide by]
10.001
[divide by]
0.000145
[divide by]
Kilopascal
[Kpa]
0.01
[divide by]
1,000
[muliply by]
10.145
[divide by]
Pounds per Square Inch
[Psi]
0.0689
[divide by]
6,894.7
[multiply by]
6.89
[multiply by]
1

🟩 Bar [bar]

‘Bar’ was introduced by Vilhelm Bjerknes, a Norwegian meteorologist who founded the modern practice of weather forecasting, and is used as a unit of pressure that is defined as 100,000 Pascals (100 kPa). It is often used to measure pressure in mechanical engineering, building services, automobiles, and monitoring tire pressures – based on the pressure in the atmosphere, with one bar roughly equal to the pressure at sea level on a cool day.

Bar is defined as being roughly the atmospheric pressure on Earth at an altitude of 111 meters [365 feet] at 15 Â°C [59°F].

Some common pressure measurements that are expressed in Bar include:

  • Mechanical engineering
  • Building services
  • Automobiles
  • Tire pressures

🟩 Pascal (Pa)

The Pascal (Pa) is the SI unit of pressure. It is named after Blaise Pascal, a French mathematician, and physicist who made significant contributions to the study of fluids and pressure.

Pascal is defined as the pressure exerted by a force of one Newton per square meter [N/m²].

This means that it is a relatively small unit of pressure, and larger pressures are typically expressed in kilopascals (Kpa) or megapascals (Mpa). As shown in the table of pressure conversions, 1 Kpa is equivalent to 1,000 Pa, and 1 Mpa is equal to 1,000,000 Pa.

Some common pressure measurements that are expressed in Pascal include:

  • Atmospheric pressure
  • Blood pressure
  • Tire pressure
  • Hydraulic systems

🟩 Kilopascal (Kpa)

Kilopascals are typically used depending on the scale of the pressure being measured.

Pascals are the basic unit; however, they are relatively small units compared, and when measuring larger pressures, such as those found in engineering applications, kilopascals are often used instead.

One kilopascal is equal to 1,000 pascals.

🟩 Pounds per square inch [Psi]

Psi (pounds per square inch or pound-force per square inch) is a unit of pressure commonly used in the United States to measure pressure in hydraulic systems, pneumatic systems, and other industrial applications and is defined as the pressure exerted by a force of one pound-force applied to an area of one square inch.

Some common pressure measurements that are expressed in Psi include:

  • Tire pressure
  • Hydraulic systems
  • Pneumatic systems

🟩 Bar to PSI to Kpa Conversion Table

The below table provides reference conversions for pressures from 0 bar to 50 bar | 0 pascal to 5 mln pascal | 0 Kpa to 5,000 Kpa & 0 Psi to 725 Psi

Bar
[Bar]
Pascal
[Pa]
Kilopascal
[Kpa]
Pounds Per Square Inch
[Psi]
0.2525,000253.63
0.550,000507.25
0.7575,0007510.88
1100,00010014.5
1.25125,00012518.13
1.5150,00015021.76
1.75175,00017525.38
2200,00020029.01
2.25225,00022532.63
2.5250,00025036.26
2.75275,00027539.89
3300,00030043.51
3.25325,00032547.14
3.5350,00035050.76
3.75375,00037554.39
4400,00040058.02
4.25425,00042561.64
4.5450,00045065.27
4.75475,00047568.89
5500,00050072.52
5.25525,00052576.14
5.5550,00055079.77
5.75575,00057583.4
6600,00060087.02
6.25625,00062590.65
6.5650,00065094.27
6.75675,00067597.9
7700,000700101.53
7.25725,000725105.15
7.5750,000750108.78
7.75775,000775112.4
8800,000800116.03
8.25825,000825119.66
8.5850,000850123.28
8.75875,000875126.91
9900,000900130.53
9.25925,000925134.16
9.5950,000950137.79
9.75975,000975141.41
101,000,0001,000145.04
10.251,025,0001,025148.66
10.51,050,0001,050152.29
10.751,075,0001,075155.92
111,100,0001,100159.54
11.251,125,0001,125163.17
11.51,150,0001,150166.79
11.751,175,0001,175170.42
121,200,0001,200174.05
12.251,225,0001,225177.67
12.51,250,0001,250181.3
12.751,275,0001,275184.92
131,300,0001,300188.55
13.251,325,0001,325192.18
13.51,350,0001,350195.8
13.751,375,0001,375199.43
141,400,0001,400203.05
14.251,425,0001,425206.68
14.51,450,0001,450210.3
14.751,475,0001,475213.93
151,500,0001,500217.56
15.251,525,0001,525221.18
15.51,550,0001,550224.81
15.751,575,0001,575228.43
161,600,0001,600232.06
16.251,625,0001,625235.69
16.51,650,0001,650239.31
16.751,675,0001,675242.94
171,700,0001,700246.56
17.251,725,0001,725250.19
17.51,750,0001,750253.82
17.751,775,0001,775257.44
181,800,0001,800261.07
18.251,825,0001,825264.69
18.51,850,0001,850268.32
18.751,875,0001,875271.95
191,900,0001,900275.57
19.251,925,0001,925279.2
19.51,950,0001,950282.82
19.751,975,0001,975286.45
202,000,0002,000290.08
20.252,025,0002,025293.7
20.52,050,0002,050297.33
20.752,075,0002,075300.95
212,100,0002,100304.58
21.252,125,0002,125308.21
21.52,150,0002,150311.83
21.752,175,0002,175315.46
222,200,0002,200319.08
22.252,225,0002,225322.71
22.52,250,0002,250326.33
22.752,275,0002,275329.96
232,300,0002,300333.59
23.252,325,0002,325337.21
23.52,350,0002,350340.84
23.752,375,0002,375344.46
242,400,0002,400348.09
24.252,425,0002,425351.72
24.52,450,0002,450355.34
24.752,475,0002,475358.97
252,500,0002,500362.59
25.252,525,0002,525366.22
25.52,550,0002,550369.85
25.752,575,0002,575373.47
262,600,0002,600377.1
26.252,625,0002,625380.72
26.52,650,0002,650384.35
26.752,675,0002,675387.98
272,700,0002,700391.6
27.252,725,0002,725395.23
27.52,750,0002,750398.85
27.752,775,0002,775402.48
282,800,0002,800406.11
28.252,825,0002,825409.73
28.52,850,0002,850413.36
28.752,875,0002,875416.98
292,900,0002,900420.61
29.252,925,0002,925424.24
29.52,950,0002,950427.86
29.752,975,0002,975431.49
303,000,0003,000435.11
30.253,025,0003,025438.74
30.53,050,0003,050442.37
30.753,075,0003,075445.99
313,100,0003,100449.62
31.253,125,0003,125453.24
31.53,150,0003,150456.87
31.753,175,0003,175460.49
323,200,0003,200464.12
32.253,225,0003,225467.75
32.53,250,0003,250471.37
32.753,275,0003,275475
333,300,0003,300478.62
33.253,325,0003,325482.25
33.53,350,0003,350485.88
33.753,375,0003,375489.5
343,400,0003,400493.13
34.253,425,0003,425496.75
34.53,450,0003,450500.38
34.753,475,0003,475504.01
353,500,0003,500507.63
35.253,525,0003,525511.26
35.53,550,0003,550514.88
35.753,575,0003,575518.51
363,600,0003,600522.14
36.253,625,0003,625525.76
36.53,650,0003,650529.39
36.753,675,0003,675533.01
373,700,0003,700536.64
37.253,725,0003,725540.27
37.53,750,0003,750543.89
37.753,775,0003,775547.52
383,800,0003,800551.14
38.253,825,0003,825554.77
38.53,850,0003,850558.4
38.753,875,0003,875562.02
393,900,0003,900565.65
39.253,925,0003,925569.27
39.53,950,0003,950572.9
39.753,975,0003,975576.53
404,000,0004,000580.15
40.254,025,0004,025583.78
40.54,050,0004,050587.4
40.754,075,0004,075591.03
414,100,0004,100594.65
41.254,125,0004,125598.28
41.54,150,0004,150601.91
41.754,175,0004,175605.53
424,200,0004,200609.16
42.254,225,0004,225612.78
42.54,250,0004,250616.41
42.754,275,0004,275620.04
434,300,0004,300623.66
43.254,325,0004,325627.29
43.54,350,0004,350630.91
43.754,375,0004,375634.54
444,400,0004,400638.17
44.254,425,0004,425641.79
44.54,450,0004,450645.42
44.754,475,0004,475649.04
454,500,0004,500652.67
45.254,525,0004,525656.3
45.54,550,0004,550659.92
45.754,575,0004,575663.55
464,600,0004,600667.17
46.254,625,0004,625670.8
46.54,650,0004,650674.43
46.754,675,0004,675678.05
474,700,0004,700681.68
47.254,725,0004,725685.3
47.54,750,0004,750688.93
47.754,775,0004,775692.56
484,800,0004,800696.18
48.254,825,0004,825699.81
48.54,850,0004,850703.43
48.754,875,0004,875707.06
494,900,0004,900710.68
49.254,925,0004,925714.31
49.54,950,0004,950717.94
49.754,975,0004,975721.56
505,000,0005,000725.19

⬜ Pressure Conversion Table Download

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