How to convert pounds per square inch to bars
bar = psi × 0.06894757293Multiply the value in pounds per square inch by 0.06894757293. To go the other way, multiply by 14.50377377 (or divide by 0.06894757293).
A pound per square inch is smaller than a bar: it takes 14.50377377 pounds per square inch to make one bar.
Worked examples
- 1 pound per square inch1 psi × 0.06894757293 = 0.06894757293 bar
- 5 pounds per square inch5 psi × 0.06894757293 = 0.3447378647 bar
- 10 pounds per square inch10 psi × 0.06894757293 = 0.6894757293 bar
- 20 pounds per square inch20 psi × 0.06894757293 = 1.378951459 bar
- 100 pounds per square inch100 psi × 0.06894757293 = 6.894757293 bar
Pounds per square inch to bars conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Pounds per square inch (psi) | Bars (bar) |
|---|---|
| 0.1 psi | 0.0068947573 bar |
| 0.25 psi | 0.017236893 bar |
| 0.5 psi | 0.034473786 bar |
| 1 psi | 0.068947573 bar |
| 2 psi | 0.13789515 bar |
| 3 psi | 0.20684272 bar |
| 4 psi | 0.27579029 bar |
| 5 psi | 0.34473786 bar |
| 6 psi | 0.41368544 bar |
| 7 psi | 0.48263301 bar |
| 8 psi | 0.55158058 bar |
| 9 psi | 0.62052816 bar |
| 10 psi | 0.68947573 bar |
| Pounds per square inch (psi) | Bars (bar) |
|---|---|
| 12 psi | 0.82737088 bar |
| 15 psi | 1.0342136 bar |
| 20 psi | 1.3789515 bar |
| 25 psi | 1.7236893 bar |
| 30 psi | 2.0684272 bar |
| 40 psi | 2.7579029 bar |
| 50 psi | 3.4473786 bar |
| 75 psi | 5.171068 bar |
| 100 psi | 6.8947573 bar |
| 250 psi | 17.236893 bar |
| 500 psi | 34.473786 bar |
| 1,000 psi | 68.947573 bar |
About the units
Pound per square inch (psi)
One pound-force per square inch, about 6,894.76 Pa. US tire, air-compressor and hydraulic pressures are given in psi. One pound per square inch equals 6,894.757293 pascals (Pa).
Bar (bar)
Exactly 100,000 Pa, very close to one atmosphere. Common for tyres, scuba tanks and espresso machines (9 bar).
Frequently asked questions
How many bars are in one pound per square inch?
There are 0.06894757293 bars in one pound per square inch, and this value is exact by definition.
How do I convert pounds per square inch to bars?
Multiply the number of pounds per square inch by 0.06894757293. For example, 10 psi × 0.06894757293 = 0.6894757293 bar.
How many pounds per square inch are in one bar?
One bar equals 14.50377377 pounds per square inch. That is the reverse factor, 1 ÷ 0.06894757293.
What is 10 pounds per square inch in bars?
10 psi = 0.6894757293 bar.
Is this psi to bar converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.