Bar to PSI Converter (bar to psi)

Type a value in bar to see it in pounds per square inch instantly.

1 bar (bar) = 14.5037738 pounds per square inch (psi)

1 pound per square inch (psi) = 0.0689475729 bar (bar)

Bar (bar)

PSI (psi)

2.5 bar = 36.25943443 psi

Open in the full converter to compare with other pressure units.

How to convert bar to pounds per square inch

Multiply the number of bar by 14.5037738.

psi = bar × 14.5037738

Example: 2.5 bar × 14.5037738 = 36.2594 psi

Espresso machines run at about 9 bar (130.5 psi); scuba tanks are filled to 200–300 bar (2,900–4,350 psi).

bar to psi conversion table

Bar (bar)	PSI (psi)
0.5 bar	7.25189 psi
1 bar	14.5038 psi
1.5 bar	21.7557 psi
2 bar	29.0075 psi
2.2 bar	31.9083 psi
2.4 bar	34.8091 psi
2.5 bar	36.2594 psi
3 bar	43.5113 psi
4 bar	58.0151 psi
5 bar	72.5189 psi
6 bar	87.0226 psi
8 bar	116.03 psi
10 bar	145.038 psi
15 bar	217.557 psi
20 bar	290.075 psi
50 bar	725.189 psi
100 bar	1,450.38 psi
200 bar	2,900.75 psi
300 bar	4,351.13 psi

About the units

Bar (bar)

One bar is exactly 100,000 pascals, close to average atmospheric pressure at sea level (1.01325 bar). Tire pressure in Europe is commonly given in bar.

Pound per square inch (psi)

Pounds per square inch is the US unit for tire pressure, air compressors and hydraulic systems. 1 psi ≈ 6,894.76 pascals.

Frequently asked questions

How many pounds per square inch are in 1 bar?

1 bar equals 14.5037738 pounds per square inch.

How do I convert bar to pounds per square inch?

Multiply the number of bar by 14.5037738. For example, 2.5 bar × 14.5037738 = 36.2594 psi.

How many bar are in 1 pound per square inch?

1 pound per square inch equals 0.0689475729 bar.

Is 1 bar equal to 1 atmosphere?

Almost: 1 atm is 1.01325 bar, so 1 bar is about 0.987 atm.

Related conversions

Background reading: SI Derived Units.