Quickly convert pounds per square inch (PSI) to bar pressure using this online tool. It’s simple, functional and uses a legitimate conversion formula.
PSI to Bar Converter
Enter a value in the field below and press the button
PSI
Result in Bar
How to Use This Tool
- Enter the pressure value in PSI.
- Click the “Convert” button.
- Instantly get the result in bar.
- Adjust decimal places for precision.
- Copy the result or Swap to switch conversion units around.
- View the calculation breakdown.
- Clear all fields with a single click to start a new conversion.
Definitions of Measurement Units
Pounds per Square Inch (PSI): A unit of pressure used in the Imperial system, primarily in the United States. It represents one pound of force applied to an area of one square inch. Commonly used for tire pressure, hydraulic systems, and industrial applications.
Bar (bar): A metric unit of pressure defined as 100,000 Pascals (Pa) or approximately equal to atmospheric pressure at sea level. It is widely used in meteorology, engineering, and compressed air systems.
Conversion Formula
To convert PSI to bar, multiply the pressure in PSI by 0.0689476:
P(bar) = P(PSI) × 0.0689476
To convert bar to PSI, multiply the pressure in bar by 14.5038:
P(PSI) = P(bar) × 14.5038
Source: National Institute of Standards and Technology (NIST)
Conversion Table
| PSI (Pounds per Square Inch) | Bar |
| 1 | 0.0689 |
| 5 | 0.3447 |
| 10 | 0.6895 |
| 20 | 1.379 |
| 30 | 2.068 |
| 50 | 3.447 |
| 75 | 5.172 |
| 100 | 6.895 |
| 150 | 10.342 |
| 200 | 13.789 |
| 300 | 20.684 |
| 500 | 34.473 |
| 1,000 | 68.947 |
| 3,000 | 206.842 |
| 5,000 | 344.737 |
Real-World Examples
| Application | PSI | Bar |
| Car tire pressure (standard sedan) | 32 | 2.2 |
| Bicycle tire pressure (road bike) | 100 | 6.9 |
| Scuba diving tank (full capacity) | 3,000 | 207 |
| Household water pressure | 60 | 4.1 |
| Industrial air compressor | 150 | 10.3 |
| Aircraft tire pressure (Boeing 737) | 200 | 13.8 |
| Formula 1 race car tire pressure | 23 | 1.6 |
| Steam boiler operating pressure | 250 | 17.2 |
| Pressure in a champagne bottle | 90 | 6.2 |
| Atmospheric pressure at sea level | 14.7 | 1.01 |
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