Convert Bar to Pound per Square Inch
Live bidirectional calculator for Bar (bar) and Pounds per Square Inch (psi) with verified formula and conversion charts.
Pressure8 units
How the Calculation Works (Linear Scaling)
Since 1 Bar = 14.503774 Pounds per Square Inch, multiply the value in Bar by 14.503774.
Bar to Pound per Square Inch Conversion Table
Precomputed values for quick reference and printing.
| Bar | Pound per Square Inch |
|---|---|
| 1 bar | 14.5038 psi |
| 2 bar | 29.0075 psi |
| 3 bar | 43.5113 psi |
| 4 bar | 58.0151 psi |
| 5 bar | 72.5189 psi |
| 6 bar | 87.0226 psi |
| 7 bar | 101.5264 psi |
| 8 bar | 116.0302 psi |
| 9 bar | 130.534 psi |
| 10 bar | 145.0377 psi |
| 15 bar | 217.5566 psi |
| 20 bar | 290.0755 psi |
| 25 bar | 362.5943 psi |
| 30 bar | 435.1132 psi |
| 40 bar | 580.151 psi |
| 50 bar | 725.1887 psi |
| 75 bar | 1087.783 psi |
| 100 bar | 1450.3774 psi |
| Pound per Square Inch | Bar |
|---|---|
| 1 psi | 0.0689 bar |
| 2 psi | 0.1379 bar |
| 3 psi | 0.2068 bar |
| 4 psi | 0.2758 bar |
| 5 psi | 0.3447 bar |
| 6 psi | 0.4137 bar |
| 7 psi | 0.4826 bar |
| 8 psi | 0.5516 bar |
| 9 psi | 0.6205 bar |
| 10 psi | 0.6895 bar |
| 15 psi | 1.0342 bar |
| 20 psi | 1.379 bar |
| 25 psi | 1.7237 bar |
| 30 psi | 2.0684 bar |
| 40 psi | 2.7579 bar |
| 50 psi | 3.4474 bar |
| 75 psi | 5.1711 bar |
| 100 psi | 6.8948 bar |
About Bar (bar)
A metric unit of pressure defined as exactly 100,000 pascals (100 kPa).
History: Introduced by British meteorologist William Napier Shaw in 1909.
Common Uses: Atmospheric pressure, scuba diving tank pressures, and steam boilers.
About Pound per Square Inch (psi)
The pressure resulting from a force of one pound-force applied to an area of one square inch (โ 6,894.757 Pa).
History: Dominant pressure unit in the British imperial and US customary systems.
Common Uses: Tire inflation, plumbing pipe ratings, air compressor tanks, and gas cylinder pressure.
โ Frequently Asked Questions
How many Pounds per Square Inch are in 1 Bar?
There are exactly 14.503774 Pounds per Square Inch in 1 Bar (1 bar = 14.503774 psi).
What is the formula to convert Bar to Pound per Square Inch?
The formula is: Pound per Square Inch = Bar ร 14.503774. Since 1 Bar = 14.503774 Pounds per Square Inch, multiply the value in Bar by 14.503774.
How do I convert 1 bar to psi manually?
To convert 1 bar to psi: apply the formula Pound per Square Inch = Bar ร 14.503774. Substituting gives: 1 ร 14.503774 = 14.5038 psi.