UnitConBar to PSI Converter
Convert bar to PSI for tire inflation, compressor settings, and hydraulic systems. European cars and pressure gauges use bar, while US equipment and tire stickers list PSI, making this conversion essential for international vehicle servicing.
Formula
Multiply bar by 14.5038 to get PSI. To reverse, divide PSI by 14.5038 to get bar.
Quick reference
| Bar (bar) | Pound per Square Inch (psi) |
|---|---|
| 1 | 14.50377 |
| 1.5 | 21.75566 |
| 2 | 29.00755 |
| 2.1 | 30.45792 |
| 2.4 | 34.80906 |
| 2.5 | 36.25943 |
| 3 | 43.51132 |
| 4 | 58.0151 |
| 5 | 72.51887 |
| 10 | 145.0377 |
About these units
Bar
The bar (100 kPa) was introduced as a convenient pressure unit near one standard atmosphere. It is used across Europe and many international standards for fluid dynamics and compressed gas systems.
Pound per Square Inch
PSI (pounds per square inch) emerged naturally from the British imperial system, where pressure was expressed relative to atmospheric pressure in familiar units. It is the dominant pressure unit in US industry.
Frequently asked questions
2.4 × 14.5038 ≈ 34.8 PSI — a common tire pressure for many vehicles.
1 × 14.5038 ≈ 14.50 PSI — slightly below atmospheric pressure (14.696 PSI).
Multiply the bar reading by 14.504. For example, a gauge showing 2.2 bar = approximately 31.9 PSI.