This bar to pounds per square inch converter gives you the bar to psi result instantly, in your browser, with the exact ratio so you can verify it. 1 bar is about 14.5038 pounds per square inch, and going the other way, 1 pound per square inch is 0.0689476 bar. Bar are part of the metric system used in most countries; pounds per square inch are an imperial unit still common in the United States and the United Kingdom.
To convert by hand, multiply the number of bar by 14.5038. For example, 10 bar is 145.038 pounds per square inch and 100 bar is 1,450.38 pounds per square inch. The table below lists the most requested values, and the converter above accepts decimals for anything in between.
bar to psi formula
psi = bar × 14.5038
1 bar is about 14.5038 pounds per square inch. Multiply the value in bar by that factor to get pounds per square inch.
Bar to Pounds per square inch conversion table
| bar | pounds per square inch | Rounded |
|---|---|---|
| 1 bar | 14.5038 psi | 14.5 |
| 2 bar | 29.0075 psi | 29 |
| 3 bar | 43.5113 psi | 43.5 |
| 4 bar | 58.0151 psi | 58 |
| 5 bar | 72.5189 psi | 72.5 |
| 6 bar | 87.0226 psi | 87 |
| 7 bar | 101.526 psi | 102 |
| 8 bar | 116.03 psi | 116 |
| 9 bar | 130.534 psi | 131 |
| 10 bar | 145.038 psi | 145 |
| 12 bar | 174.045 psi | 174 |
| 15 bar | 217.557 psi | 218 |
| 20 bar | 290.075 psi | 29 |
| 25 bar | 362.594 psi | 363 |
| 30 bar | 435.113 psi | 435 |
| 40 bar | 580.151 psi | 58 |
| 50 bar | 725.189 psi | 725 |
| 60 bar | 870.226 psi | 87 |
| 70 bar | 1,015.26 psi | 1,015 |
| 75 bar | 1,087.78 psi | 1,088 |
| 80 bar | 1,160.3 psi | 116 |
| 90 bar | 1,305.34 psi | 1,305 |
| 100 bar | 1,450.38 psi | 145 |
| 150 bar | 2,175.57 psi | 2,176 |
| 200 bar | 2,900.75 psi | 2,901 |
| 250 bar | 3,625.94 psi | 3,626 |
| 300 bar | 4,351.13 psi | 4,351 |
| 500 bar | 7,251.89 psi | 7,252 |
| 750 bar | 10,877.8 psi | 10,878 |
| 1,000 bar | 14,503.8 psi | 14,504 |
Frequently asked questions
How many pounds per square inch are in 5 bar?
5 bar = 72.5189 psi. Multiply 5 by 14.5038, the number of pounds per square inch in one bar. The converter on this page does the same arithmetic for any value, including decimals.
What is the formula to convert bar to pounds per square inch?
psi = bar × 14.5038. The factor comes from the definitions of the units: 1 bar is about 14.5038 pounds per square inch. Worked example: 12 bar = 174.045 psi.
Is 30 bar the same as 435.113 psi?
Yes. 30 bar = 435.113 psi. Rounded to four decimals it is 435.1 psi.
How do I convert pounds per square inch back to bar?
Divide by 14.5038, or multiply by 0.0689476: 1 pound per square inch is 0.0689476 bar. The pounds per square inch to bar page linked above lists common values the other way.
Is the bar to psi conversion exact?
1 bar is about 14.5038 pounds per square inch. 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.