PSI To Bar Conversion Calculator + 0.01-1000 PSI To Bar Chart

Converting PSI to bars is easy. Both PSI (Pounds per Square Inch) and bars are the most commonly used units of pressure. To make the conversion insanely easy, we created an online PSI to bar calculator (insert PSI, get bars) and a 0.1-1000 PSI to bar conversion chart.

Quick Example: In the photo above, we see that we set the tire pressure to 35 PSI. How many bars is that? Just insert 35 PSI in the calculator, and you will see that this is equal to 2.41 bars right away.

Here is this online calculator you can use whenever you need to make this conversion:

 

Let’s say you want to convert 48 PSI to bars. You just input ’48’ in the PSI input field, hit ‘Calculate’, and you get this result (screenshot):

using online calculator to convert psi to bar pressure

We can see right away that 48 PSI is equal to 3.31 bars. If you need this conversion in reverse – bar to PSI – you can check this bar to PSI calculator.

Alright, let’s have a look at the math behind this conversion:

PSI To Bar Formula

PSI and bars are both units of pressure. However, PSI is defined as a force of 1 pound exerted on an area of 1 square inch, while the bar is defined as a force of 100,000 N (Newtons) exerted on a surface area of 1 square meter. It’s hard to see how to make the conversion between these 2 pressure units from their definitions, but we can just apply this simple rule:

1 PSI = 0.0689475729 Bar

Namely, PSI is a much smaller unit of pressure than bars. 1 PSI is equal to about 0.07 bar. Using this conversion rule, we can write the following PSI to bar formula:

Bar = PSI × 0.0689475729

We see that we have to multiply the pressure expressed in PSI by a factor of 0.0689475729 to get pressure expressed in bars.

Quick Example: How many bars are in 50 PSI? Let’s just put 50 PSI in the equation above and calculate the resulting bars equivalent like this:

Bar (50 PSI) = 50 PSI × 0.0689475729 = 3.45 Bars

We see that 50 PSI is equal to 3.45 bars. Let’s have a look at the full conversion chart where we converted anywhere from 0.1 to 1000 PSI into bars:

PSI To Bar Conversion Chart

PSI (Pounds Per Square Inch): Bars:
0.01 PSI 0.00069 Bar
0.1 PSI 0.0069 Bar
0.5 PSI 0.035 Bar
1 PSI 0.069 Bar
2 PSI 0.14 Bar
3 PSI 0.21 Bar
4 PSI 0.28 Bar
5 PSI 0.34 Bar
6 PSI 0.41 Bar
7 PSI 0.48 Bar
8 PSI 0.55 Bar
9 PSI 0.62 Bar
10 PSI 0.69 Bar
15 PSI 1.03 Bar
20 PSI 1.38 Bar
25 PSI 1.72 Bar
30 PSI 2.07 Bar
35 PSI 2.41 Bar
40 PSI 2.76 Bar
45 PSI 3.10 Bar
50 PSI 3.45 Bar
55 PSI 3.79 Bar
60 PSI 4.14 Bar
65 PSI 4.48 Bar
70 PSI 4.83 Bar
75 PSI 5.17 Bar
80 PSI 5.52 Bar
85 PSI 5.86 Bar
90 PSI 6.21 Bar
100 PSI 6.89 Bar
110 PSI 7.58 Bar
120 PSI 8.27 Bar
130 PSI 8.96 Bar
140 PSI 9.65 Bar
150 PSI 10.34 Bar
160 PSI 11.03 Bar
170 PSI 11.72 Bar
180 PSI 12.41 Bar
190 PSI 13.10 Bar
200 PSI 13.79 Bar
210 PSI 14.48 Bar
220 PSI 15.17 Bar
230 PSI 15.86 Bar
240 PSI 16.55 Bar
250 PSI 17.24 Bar
260 PSI 17.93 Bar
270 PSI 18.62 Bar
280 PSI 19.31 Bar
290 PSI 19.99 Bar
300 PSI 20.68 Bar
350 PSI 24.13 Bar
400 PSI 27.58 Bar
450 PSI 31.03 Bar
500 PSI 34.47 Bar
550 PSI 37.92 Bar
600 PSI 41.37 Bar
650 PSI 44.82 Bar
700 PSI 48.26 Bar
750 PSI 51.71 Bar
800 PSI 55.16 Bar
850 PSI 58.61 Bar
900 PSI 62.05 Bar
950 PSI 65.50 Bar
1000 PSI 68.95 Bar

Using this chart, you can now just read off the psi-bar equivalent. With the calculator above, you can insert any amount of PSI and you will get how many bars is that amount of PSI.

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