Convert Pound per Square Inch to Bar
Live bidirectional calculator for Pounds per Square Inch (psi) and Bar (bar) with verified formula and conversion charts.
Pressure8 units
How the Calculation Works (Linear Scaling)
Since 1 Bar = 14.503774 Pounds per Square Inch, divide the value in Pounds per Square Inch by 14.503774.
Pound per Square Inch to Bar Conversion Table
Precomputed values for quick reference and printing.
| 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 |
| 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 |
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.
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.
โ Frequently Asked Questions
How many Bar are in 1 Pound per Square Inch?
There are exactly 0.068948 Bar in 1 Pound per Square Inch (1 psi = 0.068948 bar).
What is the formula to convert Pound per Square Inch to Bar?
The formula is: Bar = Pound per Square Inch / 14.503774. Since 1 Bar = 14.503774 Pounds per Square Inch, divide the value in Pounds per Square Inch by 14.503774.
How do I convert 1 psi to bar manually?
To convert 1 psi to bar: apply the formula Bar = Pound per Square Inch / 14.503774. Substituting gives: 1 / 14.503774 = 0.0689 bar.