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Tyres >Help >Tyres > What is the difference between PSI & BAR & KPA?

What is the difference between PSI & BAR & KPA?


What is PSI?

PSI stands for pounds per square inch. It is a unit of pressure commonly used in the United States, or other countries that do not use the metric system.

What is BAR?

BAR is a unit of measurement for pressure. It is most commonly used in Europe and other areas of the world where metric system is used. One BAR is equal to 14.5 PSI.

What is KPA?

KPA stands for kilopascal. It is a unit of pressure measurement. This one is mostly used within scientific and engineering fields. However, some tyre pressure gauges also use it. A kilopascal is equal to 0.145 PSI or 0.01 BAR

What is the difference between PSI, BAR, and KPA?

PSI, BAR, and KPA are all different ways of measuring pressure. Their difference comes in the scale of their readings and the applications in which they are most commonly associated with. PSI is used for the most past in the United States of America. Whilst BAR is most commonly a measurement used in European countries. KPA is a little bit different as it is more closely associate with scientific and engineering industries.

Which is the most popular unit of pressure measurement?

The popularity of PSI, BAR, and KPA varies depending on the location and industry. In the United States, PSI is the most commonly used unit of pressure measurement. In Europe and other metric countries, BAR is more commonly used for car tyres. KPA is most commonly used in scientific and engineering applications

PSI to BAR conversion table

Here is a full table of PSI to BAR conversions:

PSIBar
100.7
110.8
120.8
130.9
141.0
151.0
161.1
171.2
181.2
191.3
201.4
211.4
221.5
231.6
241.7
251.7
261.8
271.9
281.9
292.0
302.1
312.1
322.2
332.3
342.3
352.4
362.5
372.5
382.6
392.7
402.8
412.8
422.9
433.0
443.0
453.1
463.2
473.2
483.3
493.4
503.4
513.5
523.6
533.7
543.7
553.8
563.9
573.9
584.0
594.1
604.1
614.2
624.3
634.3
644.4
654.5
664.6
674.6
704.83
755.17
805.52
906.21
1006.89
1107.58
1208.27
1308.96
1409.65
15010.34
16011.03
20013.79
21014.48
22015.17
23015.86
24016.55
25017.24
30020.69
35024.13
40027.58
50034.47
60041.36
70048.26
80055.15
90062.04
100068.95
2000137.89
3000206.84
4000275.79
5000344.74
6000413.68
7000482.63
8000551.58
9000620.53
10000689.48

PSI to KPA Conversion Table

Here is a table of conversions from PSI to kilopascals for common pressure values:

PSIKPA
16.89476
534.4738
1068.9476
15103.4214
20137.8952
25172.369
30206.8428
35241.3166
40275.7904
45310.2642
50344.738
55379.2118
60413.6856
65448.1594
70482.6332
75517.107
80551.5808
85586.0546
90620.5284
95655.0022
100689.476
120827.3712
125861.845
1501034.214
2001378.952

BAR to PSI conversion Table

Here is a full table of BAR to PSI conversions:

BarPSI
1.318.85
1.420.31
1.521.76
1.623.21
1.724.66
1.826.11
1.927.57
2.029.02
2.130.47
2.231.92
2.333.38
2.434.83
2.536.28
2.637.73
2.739.18
2.840.64
2.942.09
3.043.54
3.144.99
3.246.44
3.347.90
3.449.35
3.550.80
3.652.25
3.753.70
3.855.16
3.956.61
4.058.06
4.159.51
4.260.96
4.362.42
4.463.87
4.565.32
4.666.77
4.768.22
4.869.68
4.971.13
5.072.58
5.174.03
5.275.48
5.376.94
5.478.39
5.579.84
5.681.29
5.782.74
5.884.20
5.985.65
6.087.10
6.188.55
6.290.00
6.391.46
6.492.91
6.594.36
6.695.81
6.797.26
6.898.72
6.9100.17
7.0101.62

KPA to Bar conversion Table

Here is a full table of KPA to Bar conversions:

KPABar
1001.0
1101.1
1201.2
1301.3
1401.4
1501.5
1601.6
1701.7
1801.8
1901.9
2002.0
2102.1
2202.2
2302.3
2402.4
2502.5
2602.6
2702.7
2802.8
2902.9
3003.0
3103.1
3203.2
3303.3
3403.4
3503.5
3603.6
3703.7
3803.8
3903.9
4004.0
4104.1
4204.2
4304.3
4404.4
4504.5
4604.6
4704.7
4804.8
4904.9
5005.0
5105.1
5205.2
5305.3
5405.4
5505.5
5605.6
5705.7
5805.8
5905.9
6006.0
6106.1
6206.2
6306.3
6406.4
6506.5

KPA to PSI conversion table

Here is a full table of KPA to PSI conversions:

KPAPSI
10014.5
11015.9
12017.4
13018.8
14020.3
15021.8
16023.2
17024.7
18026.1
19027.6
20029.0
21030.5
22031.9
23033.4
24034.8
25036.3
26037.8
27039.2
28040.7
29042.1
30043.6
31045.0
32046.5
33047.9
34049.4
35050.8
36052.3
37053.7
38055.2
39056.6
40058.1
41059.5
42061.0
43062.4
44063.9
45065.3
46066.8
47068.2
48069.7
49071.1
50072.6
51074.0
52075.5
53076.9
54078.4
55079.8
56081.3
57082.7
58084.2
59085.6
60087.1
61088.5
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