1 bar = 14.5038 psi
1 bar equals 14.5038 pounds per square inch. To convert bars to pounds per square inch, multiply the bar value by 14.5038. For quick reference: 1 bar = 14.5038 psi, 5 bar = 72.5189 psi, 10 bar = 145.038 psi, 100 bar = 1450.38 psi.
Pounds per square inch = Bars × 14.5038Start with your value in bars.
Multiply the bar value by 14.5038. This is the exact conversion factor from bars to pounds per square inch.
The product is your value in pounds per square inch. For example, 5 bar × 14.5038 = 72.5189 psi.
The exact factor from bars to pounds per square inch is 14.5038.
Pounds per square inch = Bars × 14.5038
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Bars (bar) | Pounds per square inch (psi) |
|---|---|
| 0.001 bar | 0.014504 psi |
| 0.01 bar | 0.14504 psi |
| 0.1 bar | 1.4504 psi |
| 0.5 bar | 7.2519 psi |
| 1 bar | 14.504 psi |
| 1.5 bar | 21.756 psi |
| 2 bar | 29.008 psi |
| 2.5 bar | 36.259 psi |
| 3 bar | 43.511 psi |
| 4 bar | 58.015 psi |
| 5 bar | 72.519 psi |
| 6 bar | 87.023 psi |
| 7 bar | 101.53 psi |
| 8 bar | 116.03 psi |
| 9 bar | 130.53 psi |
| 10 bar | 145.04 psi |
| 14 bar | 203.05 psi |
| 15 bar | 217.56 psi |
| 20 bar | 290.08 psi |
| 25 bar | 362.59 psi |
| 30 bar | 435.11 psi |
| 32 bar | 464.12 psi |
| 35 bar | 507.63 psi |
| 40 bar | 580.15 psi |
| 50 bar | 725.19 psi |
| 60 bar | 870.23 psi |
| 75 bar | 1087.8 psi |
| 80 bar | 1160.3 psi |
| 100 bar | 1450.4 psi |
| 101.325 bar | 1469.6 psi |
| 150 bar | 2175.6 psi |
| 200 bar | 2900.8 psi |
| 250 bar | 3625.9 psi |
| 300 bar | 4351.1 psi |
| 400 bar | 5801.5 psi |
| 500 bar | 7251.9 psi |
| 760 bar | 11023 psi |
| 1000 bar | 14504 psi |
| 1013.25 bar | 14696 psi |
| 2000 bar | 29008 psi |
| 5000 bar | 72519 psi |
| 10000 bar | 145038 psi |
| 14.7 bar | 213.21 psi |
| 50000 bar | 725189 psi |
| 100000 bar | 1450377 psi |
| 101325 bar | 1469595 psi |
| 200000 bar | 2900755 psi |
| 500000 bar | 7251887 psi |
| 1000000 bar | 14503774 psi |
| 10000000 bar | 145037738 psi |
Standard atmospheric pressure is about 1.013 bar. A scuba tank is typically filled to 200 bar. In pounds per square inch, that gives you: 1 bar = 14.5038 psi, 10 bar = 145.038 psi, 100 bar = 1450.38 psi.
The bar equals exactly 100,000 pascals — close to but not equal to standard atmospheric pressure (1 atm = 1.01325 bar). It is the working unit for compressed-air systems, pneumatic tools, dive computers, and weather pressure outside North America.
The pound per square inch (psi) is the customary US pressure unit, derived from the avoirdupois pound-force on a square inch (≈ 6,894.76 Pa exactly). It is the standard unit on US car tire-pressure stickers, scuba gauges in the US, and most plumbing specifications.