Use our Bar to PSI converter to quickly and accurately convert pressure from bar to pounds per square inch (PSI). Enter a pressure in bar in the calculator above to instantly find the equivalent pressure in PSI.
Convert Bar to PSI
Enter a pressure in bar to instantly calculate the equivalent pressure in pounds per square inch (PSI).
Formula: PSI = bar × 14.503773773
How to Convert Bar to PSI
To convert bar to PSI, multiply the pressure in bar by 14.503773773.
1 bar ≈ 14.503773773 PSI
Formula
PSI = bar × 14.503773773
Example: Convert 2.5 bar to PSI.
2.5 × 14.503773773 = 36.2594344325
2.5 bar ≈ 36.259434 PSI
Bar to PSI Conversion Chart
| Bar | PSI |
|---|---|
| 0.5 | 7.251887 |
| 1 | 14.503774 |
| 1.5 | 21.755661 |
| 2 | 29.007548 |
| 2.5 | 36.259434 |
| 3 | 43.511321 |
| 4 | 58.015095 |
| 5 | 72.518869 |
| 10 | 145.037738 |
| 50 | 725.188689 |
| 100 | 1,450.377377 |
Common Tire Pressure Conversions
Bar to PSI conversions are especially useful when checking tire-pressure recommendations on vehicles, bicycles, motorcycles, and equipment that use different pressure units. For quick reference, 2 bar ≈ 29.01 PSI, 2.2 bar ≈ 31.91 PSI, 2.5 bar ≈ 36.26 PSI, 3 bar ≈ 43.51 PSI, and 5 bar ≈ 72.52 PSI
For pressure values not listed above, use the Bar to PSI converter to calculate the equivalent PSI measurement instantly.
Bar and PSI in Pressure Measurements
Bar and PSI are both units used to express pressure, but they are common in different measurement systems and applications. Bar is widely used internationally for automotive, industrial, pneumatic, and technical pressure measurements, while PSI is commonly used in the United States for tire pressure, compressed air, and equipment specifications.
Frequently Asked Questions
How do you convert bar to PSI?
Multiply the pressure in bar by approximately 14.503773773.
How many PSI is 1 bar?
1 bar is approximately 14.503774 PSI.
How many PSI is 2.5 bar?
2.5 bar is approximately 36.259434 PSI.
How many PSI is 3 bar?
3 bar is approximately 43.511321 PSI.
Is bar the same as PSI?
No. Both measure pressure, but they are different units. One bar equals approximately 14.5038 PSI.
When You Might Need to Convert Bar to PSI
You may need to convert bar to PSI when checking tire pressure, using an air compressor, reading vehicle specifications, working with pneumatic equipment, comparing pressure gauges, reviewing industrial machinery specifications, or interpreting technical information from different countries.
The Bar to PSI converter makes it easy to compare pressure specifications expressed in bar with measurements expressed in pounds per square inch.
About Bar
The bar is a metric unit of pressure equal to exactly 100,000 pascals (Pa). Although it is not an SI unit itself, it is widely used in automotive, industrial, meteorological, and technical applications.
About PSI
PSI, or pounds per square inch, is a unit of pressure based on pound-force applied over an area of one square inch. It is commonly used in the United States for tire pressure, compressed-air systems, and other pressure measurements.
For additional information about metric measurement and SI units, visit the U.S. National Institute of Standards and Technology (NIST).
Understanding the difference between these pressure measurement systems is especially useful when comparing vehicle, equipment, or technical specifications from different countries. Bar is widely used internationally for automotive, industrial, and pneumatic pressure measurements, while PSI is commonly used in the United States. Whether you are checking tire pressure, using an air compressor, comparing pressure gauges, working with pneumatic equipment, or reviewing machinery specifications, an accurate bar to PSI conversion helps ensure that you are working with the correct pressure measurement.
For fast and accurate results, use our Bar to PSI converter whenever you need to compare pressure measurements between bar and pounds per square inch (PSI).
Convert PSI to Bar
Need to convert in the opposite direction? Use our PSI to Bar Converter to quickly convert pounds per square inch (PSI) into bar.
More Pressure Converters
Explore more pressure measurement tools in our Pressure Converters collection, or browse All Converters to find additional conversion tools across all measurement categories.