How to convert bar to pounds per square inch
One bar equals 14.503774 pounds per square inch. To convert, multiply the number of bar by 14.503774:
Mental-math shortcut: Multiply bar by 14.5: 2.5 bar ≈ 36 psi.
Example
Convert 2.5 bar to pounds per square inch: 2.5 bar × 14.503774 = 36.2594 psi.
Bar to PSI conversion chart
| Bar (bar) | PSI (psi) |
|---|---|
| 0.5 | 7.2519 |
| 1 | 14.5038 |
| 1.5 | 21.7557 |
| 2 | 29.0075 |
| 2.2 | 31.9083 |
| 2.4 | 34.8091 |
| 2.5 | 36.2594 |
| 3 | 43.5113 |
| 4 | 58.0151 |
| 5 | 72.5189 |
| 6 | 87.0226 |
| 8 | 116.03 |
| 10 | 145.04 |
| 100 | 1,450.38 |
| 200 | 2,900.75 |
| 300 | 4,351.13 |
What is a bar?
The bar is a metric unit of pressure equal to exactly 100,000 pascals (100 kPa) — very close to the average air pressure at sea level (1.01325 bar). It is widely used in Europe for tire pressure, espresso machines, diving and weather. One bar is about 14.5 psi.
What is PSI?
PSI (pounds per square inch) is the US unit of pressure, used for tire pressure, air compressors, water pressure and scuba tanks. One psi is about 6.895 kilopascals. Most passenger car tires run at 30–35 psi, and household water pressure is typically 40–80 psi.
Converting the other way? Use the PSI to Bar converter.
Frequently asked questions
How many pounds per square inch is one bar?
One bar is 14.503774 pounds per square inch.
How do I convert bar to pounds per square inch?
Multiply the value in bar by 14.503774. For example, 2.5 bar × 14.503774 = 36.2594 psi.
What is 1 bar in pounds per square inch?
1 bar is 14.5038 pounds per square inch.
How do I convert pounds per square inch to bar?
Multiply pounds per square inch by 0.068948 (or divide by 14.503774). You can also use our PSI to Bar converter.
Conversions use the internationally agreed definitions of each unit (for example, 1 inch = 2.54 cm exactly) and are rounded for display. Volume converters use US customary units unless stated otherwise.
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