How to convert pounds per square inch to bars
Formula: bar = psi × 0.0689476
Worked example: 32 psi → 32 × 0.0689476 = 2.20632 bar
Divide psi by 14.5038, or multiply by 0.0689476. A US recommendation of 35 psi corresponds to 2.41 bar on a European gauge.
Pounds per square inch to bars conversion chart
| Pounds per square inch (psi) | Bars (bar) |
|---|---|
| 1 psi | 0.0689476 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 14.7 psi | 1.01353 bar |
| 15 psi | 1.03421 bar |
| 20 psi | 1.37895 bar |
| 25 psi | 1.72369 bar |
| 30 psi | 2.06843 bar |
| 32 psi | 2.20632 bar |
| 35 psi | 2.41317 bar |
| 40 psi | 2.7579 bar |
| 50 psi | 3.44738 bar |
| 60 psi | 4.13685 bar |
| 80 psi | 5.51581 bar |
| 100 psi | 6.89476 bar |
| 150 psi | 10.3421 bar |
| 200 psi | 13.7895 bar |
| 500 psi | 34.4738 bar |
| 1,000 psi | 68.9476 bar |
| 3,000 psi | 206.843 bar |
What is a pound per square inch?
The pound per square inch is the US unit of pressure, about 6,894.76 pascals. Car tires are usually inflated to 30 to 35 psi, and sea-level air pressure is 14.7 psi. Gauges often read psig, the pressure above atmospheric.
What is a bar?
The bar equals 100,000 pascals, very close to the atmospheric pressure at sea level. Europeans inflate car tires to about 2.2 to 2.5 bar, an espresso machine brews at around 9 bar and a full scuba tank holds about 200 bar.