This pounds per square inch to bar converter gives you the psi to bar result instantly, in your browser, with the exact ratio so you can verify it. 1 pound per square inch is about 0.0689476 bar, and going the other way, 1 bar is 14.5038 pounds per square inch. Pounds per square inch are an imperial unit still common in the United States and the United Kingdom; bar are part of the metric system used in most countries.
To convert by hand, multiply the number of pounds per square inch by 0.0689476. For example, 10 pounds per square inch is 0.689476 bar and 100 pounds per square inch is 6.89476 bar. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
psi to bar formula
bar = psi × 0.0689476
1 pound per square inch is about 0.0689476 bar. Multiply the value in pounds per square inch by that factor to get bar.
Pounds per square inch to Bar conversion table
| pounds per square inch | bar | Rounded |
|---|---|---|
| 1 psi | 0.0689476 bar | 0.0689 |
| 2 psi | 0.137895 bar | 0.138 |
| 3 psi | 0.206843 bar | 0.207 |
| 4 psi | 0.27579 bar | 0.276 |
| 5 psi | 0.344738 bar | 0.345 |
| 6 psi | 0.413685 bar | 0.414 |
| 7 psi | 0.482633 bar | 0.483 |
| 8 psi | 0.551581 bar | 0.552 |
| 9 psi | 0.620528 bar | 0.621 |
| 10 psi | 0.689476 bar | 0.689 |
| 12 psi | 0.827371 bar | 0.827 |
| 15 psi | 1.03421 bar | 1.03 |
| 20 psi | 1.37895 bar | 1.38 |
| 25 psi | 1.72369 bar | 1.72 |
| 30 psi | 2.06843 bar | 2.07 |
| 40 psi | 2.7579 bar | 2.76 |
| 50 psi | 3.44738 bar | 3.45 |
| 60 psi | 4.13685 bar | 4.14 |
| 70 psi | 4.82633 bar | 4.83 |
| 75 psi | 5.17107 bar | 5.17 |
| 80 psi | 5.51581 bar | 5.52 |
| 90 psi | 6.20528 bar | 6.21 |
| 100 psi | 6.89476 bar | 6.89 |
| 150 psi | 10.3421 bar | 10.3 |
| 200 psi | 13.7895 bar | 13.8 |
| 250 psi | 17.2369 bar | 17.2 |
| 300 psi | 20.6843 bar | 20.7 |
| 500 psi | 34.4738 bar | 34.5 |
| 750 psi | 51.7107 bar | 51.7 |
| 1,000 psi | 68.9476 bar | 68.9 |
Frequently asked questions
How many bar are in 5 pounds per square inch?
5 psi = 0.344738 bar. Multiply 5 by 0.0689476, the number of bar in one pound per square inch. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert pounds per square inch to bar?
bar = psi × 0.0689476. The factor comes from the definitions of the units: 1 pound per square inch is about 0.0689476 bar. Worked example: 12 psi = 0.827371 bar.
Is 30 psi the same as 2.06843 bar?
Yes. 30 psi = 2.06843 bar. Rounded to four decimals it is 2.068 bar.
How do I convert bar back to pounds per square inch?
Divide by 0.0689476, or multiply by 14.5038: 1 bar is 14.5038 pounds per square inch. The bar to pounds per square inch page linked above lists common values the other way.
Is the psi to bar conversion exact?
1 pound per square inch is about 0.0689476 bar. The ratio is a defined constant but produces a long decimal, so this page rounds to six significant digits, which is more precision than any everyday measurement needs.