How do I convert bars to psi?

Multiply the value in bar by the conversion factor. For example, 10 bar = 145.0377377 psi. Use our calculator above for instant results.

Is the bars to psi 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 bars to psi 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 bars and psi?

Bars (bar) and PSI (psi) are both units of pressure but belong to different measurement systems. 1 bar = 14.50377377 psi. Use the converter above to switch between them instantly.

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

bar → psi Reference Table

bar	psi
0.001 bar	0.01450377377 psi
0.002 bar	0.02900754755 psi
0.003 bar	0.04351132132 psi
0.004 bar	0.05801509509 psi
0.005 bar	0.07251886887 psi
0.006 bar	0.08702264264 psi
0.007 bar	0.1015264164 psi
0.008 bar	0.1160301902 psi
0.009 bar	0.130533964 psi
0.01 bar	0.1450377377 psi
0.02 bar	0.2900754755 psi
0.03 bar	0.4351132132 psi
0.04 bar	0.5801509509 psi
0.05 bar	0.7251886887 psi
0.06 bar	0.8702264264 psi
0.07 bar	1.015264164 psi
0.08 bar	1.160301902 psi
0.09 bar	1.30533964 psi
0.1 bar	1.450377377 psi
0.2 bar	2.900754755 psi
0.3 bar	4.351132132 psi
0.4 bar	5.801509509 psi
0.5 bar	7.251886887 psi
0.6 bar	8.702264264 psi
0.7 bar	10.15264164 psi
0.8 bar	11.60301902 psi
0.9 bar	13.0533964 psi
1 bar	14.50377377 psi
1.5 bar	21.75566066 psi
2 bar	29.00754755 psi
2.5 bar	36.25943443 psi
3 bar	43.51132132 psi
3.5 bar	50.76320821 psi
4 bar	58.01509509 psi
4.5 bar	65.26698198 psi
5 bar	72.51886887 psi
5.5 bar	79.77075575 psi
6 bar	87.02264264 psi
6.5 bar	94.27452952 psi
7 bar	101.5264164 psi
7.5 bar	108.7783033 psi
8 bar	116.0301902 psi
8.5 bar	123.2820771 psi
9 bar	130.533964 psi
9.5 bar	137.7858508 psi
10 bar	145.0377377 psi
11 bar	159.5415115 psi
12 bar	174.0452853 psi
13 bar	188.549059 psi
14 bar	203.0528328 psi
15 bar	217.5566066 psi
16 bar	232.0603804 psi
17 bar	246.5641541 psi
18 bar	261.0679279 psi
19 bar	275.5717017 psi
20 bar	290.0754755 psi
25 bar	362.5943443 psi
30 bar	435.1132132 psi
35 bar	507.6320821 psi
40 bar	580.1509509 psi
45 bar	652.6698198 psi
50 bar	725.1886887 psi
55 bar	797.7075575 psi
60 bar	870.2264264 psi
65 bar	942.7452952 psi
70 bar	1015.264164 psi
75 bar	1087.783033 psi
80 bar	1160.301902 psi
85 bar	1232.820771 psi
90 bar	1305.33964 psi
95 bar	1377.858508 psi
100 bar	1450.377377 psi
120 bar	1740.452853 psi
125 bar	1812.971722 psi
130 bar	1885.49059 psi
140 bar	2030.528328 psi
150 bar	2175.566066 psi
160 bar	2320.603804 psi
175 bar	2538.16041 psi
180 bar	2610.679279 psi
200 bar	2900.754755 psi
225 bar	3263.349099 psi
250 bar	3625.943443 psi
275 bar	3988.537788 psi
300 bar	4351.132132 psi
350 bar	5076.320821 psi
400 bar	5801.509509 psi
450 bar	6526.698198 psi
500 bar	7251.886887 psi
600 bar	8702.264264 psi
700 bar	10152.64164 psi
750 bar	10877.83033 psi
800 bar	11603.01902 psi
900 bar	13053.3964 psi
1000 bar	14503.77377 psi
1200 bar	17404.52853 psi
1250 bar	18129.71722 psi
1500 bar	21755.66066 psi
1750 bar	25381.6041 psi
2000 bar	29007.54755 psi
2500 bar	36259.43443 psi
3000 bar	43511.32132 psi
4000 bar	58015.09509 psi
4500 bar	65266.98198 psi
5000 bar	72518.86887 psi
6000 bar	87022.64264 psi
7000 bar	101526.4164 psi
7500 bar	108778.3033 psi
8000 bar	116030.1902 psi
9000 bar	130533.964 psi
10000 bar	145037.7377 psi
15000 bar	217556.6066 psi
20000 bar	290075.4755 psi
25000 bar	362594.3443 psi
50000 bar	725188.6887 psi
75000 bar	1087783.033 psi
100000 bar	1450377.377 psi

Real-World Examples

Typical passenger car tire pressure

2.3 bar = 33.35867968 psi

Fully loaded SUV tire pressure

2.8 bar = 40.61056656 psi

Truck tire pressure

8 bar = 116.0301902 psi

Road bicycle tire pressure

4 bar = 58.01509509 psi

Scuba diving tank pressure

200 bar = 2900.754755 psi

Why Convert Bars to PSI?

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

Pressure conversions between bar and psi 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 Bars to PSI

To convert bars to psi, use the following formula:

psi = bar × 14.50377377

Example: 1 bar = 14.50377377 psi

For example, 5 bar = 72.51886887 psi, 10 bar = 145.0377377 psi, and 100 bar = 1450.377377 psi. For larger values, 1000 bar = 14503.77377 psi. Conversely, 1 psi = 0.06894757293 bar. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

Typical passenger car tire pressure: 2.3 bar = 33.35867968 psi
Fully loaded SUV tire pressure: 2.8 bar = 40.61056656 psi
Truck tire pressure: 8 bar = 116.0301902 psi
Road bicycle tire pressure: 4 bar = 58.01509509 psi
Scuba diving tank pressure: 200 bar = 2900.754755 psi

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 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).

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.

Bars → PSI

Bars to PSI Formula