Bar to pounds per square inch
Type a value in either box. 1 bar = 14.503774 psi.
Last updated
How to convert
To convert bar to pounds per square inch, multiply by 14.503774.
psi = bar × 14.503774
For example: 3 bar × 14.503774 = 43.5113 psi.
One bar is exactly 100,000 pascals.
In your head: Multiply by 14.5, or by 15 for a rough figure (about 3% high): 2 bar ≈ 29 psi.
When you’ll need it
Car handbooks and bike pumps often give tyre pressures in bar, while garage air machines may use psi. A 2.5 bar car tyre is at about 36 psi.
Common values
| Bar (bar) | Pounds per square inch (psi) |
|---|---|
| 0.5 bar | 7.2519 psi |
| 1 bar | 14.5038 psi |
| 1.5 bar | 21.7557 psi |
| 2 bar | 29.0075 psi |
| 2.2 bar | 31.9083 psi |
| 2.5 bar | 36.2594 psi |
| 3 bar | 43.5113 psi |
| 3.5 bar | 50.7632 psi |
| 4 bar | 58.0151 psi |
| 5 bar | 72.5189 psi |
| 8 bar | 116.0302 psi |
| 10 bar | 145.0377 psi |
Questions
- How many pounds per square inch are in a bar?
- 1 bar is 14.503774 pounds per square inch.
- What is the formula to convert bar to pounds per square inch?
- psi = bar × 14.503774. One bar is exactly 100,000 pascals.
- What is 3 bar in pounds per square inch?
- 3 bar is 43.5113 pounds per square inch.
- What tyre pressure is 2.2 bar in psi?
- 2.2 bar is about 31.9 psi. Car tyre pressures are usually quoted in both; check the sticker inside the driver's door or the fuel flap for your car's figures.