How many bars are in 1 psi?

1 psi equals 0.06894757293 bar.

How do I convert psi to bars?

Multiply the value in psi by the conversion factor. For example, 10 psi = 0.6894757293 bar. Use our calculator above for instant results.

Is the psi to bars conversion exact?

This conversion uses NIST SP 811 factors with 10-digit precision, which is more than sufficient for all practical purposes.

Can I convert psi to bars offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between psi and bars?

PSI (psi) and Bars (bar) are both units of pressure but belong to different measurement systems. 1 psi = 0.06894757293 bar. Use the converter above to switch between them instantly.

PSI to Bars (psi → bar) — Free Online Converter

psi → bar Reference Table

psi	bar
0.001 psi	0.00006894757293 bar
0.002 psi	0.0001378951459 bar
0.003 psi	0.0002068427188 bar
0.004 psi	0.0002757902917 bar
0.005 psi	0.0003447378647 bar
0.006 psi	0.0004136854376 bar
0.007 psi	0.0004826330105 bar
0.008 psi	0.0005515805835 bar
0.009 psi	0.0006205281564 bar
0.01 psi	0.0006894757293 bar
0.02 psi	0.001378951459 bar
0.03 psi	0.002068427188 bar
0.04 psi	0.002757902917 bar
0.05 psi	0.003447378647 bar
0.06 psi	0.004136854376 bar
0.07 psi	0.004826330105 bar
0.08 psi	0.005515805835 bar
0.09 psi	0.006205281564 bar
0.1 psi	0.006894757293 bar
0.2 psi	0.01378951459 bar
0.3 psi	0.02068427188 bar
0.4 psi	0.02757902917 bar
0.5 psi	0.03447378647 bar
0.6 psi	0.04136854376 bar
0.7 psi	0.04826330105 bar
0.8 psi	0.05515805835 bar
0.9 psi	0.06205281564 bar
1 psi	0.06894757293 bar
1.5 psi	0.1034213594 bar
2 psi	0.1378951459 bar
2.5 psi	0.1723689323 bar
3 psi	0.2068427188 bar
3.5 psi	0.2413165053 bar
4 psi	0.2757902917 bar
4.5 psi	0.3102640782 bar
5 psi	0.3447378647 bar
5.5 psi	0.3792116511 bar
6 psi	0.4136854376 bar
6.5 psi	0.4481592241 bar
7 psi	0.4826330105 bar
7.5 psi	0.517106797 bar
8 psi	0.5515805835 bar
8.5 psi	0.5860543699 bar
9 psi	0.6205281564 bar
9.5 psi	0.6550019429 bar
10 psi	0.6894757293 bar
11 psi	0.7584233022 bar
12 psi	0.8273708752 bar
13 psi	0.8963184481 bar
14 psi	0.965266021 bar
15 psi	1.034213594 bar
16 psi	1.103161167 bar
17 psi	1.17210874 bar
18 psi	1.241056313 bar
19 psi	1.310003886 bar
20 psi	1.378951459 bar
25 psi	1.723689323 bar
30 psi	2.068427188 bar
35 psi	2.413165053 bar
40 psi	2.757902917 bar
45 psi	3.102640782 bar
50 psi	3.447378647 bar
55 psi	3.792116511 bar
60 psi	4.136854376 bar
65 psi	4.481592241 bar
70 psi	4.826330105 bar
75 psi	5.17106797 bar
80 psi	5.515805835 bar
85 psi	5.860543699 bar
90 psi	6.205281564 bar
95 psi	6.550019429 bar
100 psi	6.894757293 bar
120 psi	8.273708752 bar
125 psi	8.618446616 bar
130 psi	8.963184481 bar
140 psi	9.65266021 bar
150 psi	10.34213594 bar
160 psi	11.03161167 bar
175 psi	12.06582526 bar
180 psi	12.41056313 bar
200 psi	13.78951459 bar
225 psi	15.51320391 bar
250 psi	17.23689323 bar
275 psi	18.96058256 bar
300 psi	20.68427188 bar
350 psi	24.13165053 bar
400 psi	27.57902917 bar
450 psi	31.02640782 bar
500 psi	34.47378647 bar
600 psi	41.36854376 bar
700 psi	48.26330105 bar
750 psi	51.7106797 bar
800 psi	55.15805835 bar
900 psi	62.05281564 bar
1000 psi	68.94757293 bar
1200 psi	82.73708752 bar
1250 psi	86.18446616 bar
1500 psi	103.4213594 bar
1750 psi	120.6582526 bar
2000 psi	137.8951459 bar
2500 psi	172.3689323 bar
3000 psi	206.8427188 bar
4000 psi	275.7902917 bar
4500 psi	310.2640782 bar
5000 psi	344.7378647 bar
6000 psi	413.6854376 bar
7000 psi	482.6330105 bar
7500 psi	517.106797 bar
8000 psi	551.5805835 bar
9000 psi	620.5281564 bar
10000 psi	689.4757293 bar
15000 psi	1034.213594 bar
20000 psi	1378.951459 bar
25000 psi	1723.689323 bar
50000 psi	3447.378647 bar
75000 psi	5171.06797 bar
100000 psi	6894.757293 bar

Real-World Examples

Standard passenger car tire pressure

33 psi = 2.275269907 bar

Fully loaded SUV tire pressure

40 psi = 2.757902917 bar

Truck tire pressure

120 psi = 8.273708752 bar

Mountain bike tire pressure (high end)

80 psi = 5.515805835 bar

Scuba diving tank pressure

3000 psi = 206.8427188 bar

Why Convert PSI to Bars?

Converting between psi (psi) and bars (bar) is one of the most common pressure conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert psi to bar saves time and prevents errors.

Pressure conversions between psi and bar are vital in automotive maintenance, meteorology, and scuba diving. Tire pressure affects fuel efficiency and safety, requiring drivers to convert between PSI and bar depending on the gauge used. Divers must strictly monitor pressure to avoid decompression sickness, often needing to convert depth and tank pressure readings. In weather forecasting, atmospheric pressure changes indicate approaching storms, with data often shared in different units globally. Failing to convert pressure accurately can lead to equipment failure, tire blowouts, or life-threatening situations underwater.

How to Convert PSI to Bars

To convert psi to bars, use the following formula:

bar = psi × 0.06894757293

Example: 1 psi = 0.06894757293 bar

For example, 5 psi = 0.3447378647 bar, 10 psi = 0.6894757293 bar, and 100 psi = 6.894757293 bar. For larger values, 1000 psi = 68.94757293 bar. Conversely, 1 bar = 14.50377377 psi. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

Standard passenger car tire pressure: 33 psi = 2.275269907 bar
Fully loaded SUV tire pressure: 40 psi = 2.757902917 bar
Truck tire pressure: 120 psi = 8.273708752 bar
Mountain bike tire pressure (high end): 80 psi = 5.515805835 bar
Scuba diving tank pressure: 3000 psi = 206.8427188 bar

Common Mistakes to Avoid

Gauge vs Absolute: confusing gauge pressure (psig) with absolute pressure (psia).
Bar vs Pascal: 1 Bar is 100,000 Pascals, not 10 or 100.
Atmosphere variations: confusing standard atm with technical atm.

Pro Tips

Tire checks: Check tire pressure when cold (tires heat up and pressure rises while driving).
PSI rule: Typical car tires are 30-35 PSI.
Altitude effect: Air pressure drops as you go higher (ears popping).

What is a PSI?

PSI (Pounds per Square Inch) is a unit of pressure in the Imperial and US customary systems. It represents the force of one pound-force applied to an area of one square inch.

PSI is the standard unit for tire pressure, industrial hydraulics, and compressed gas systems in the United States and UK.

What is a Bar?

The bar is a metric unit of pressure, exactly equal to 100,000 pascals. It is slightly less than the average atmospheric pressure at sea level.

Bars are commonly used in meteorology, scuba diving, and industry to measure fluid pressure and tire pressure (in some countries).

PSI → Bars

PSI to Bars Formula