Pressure Converter
Convert between Pascal, Bar, PSI, Atmosphere and more — instantly and accurately.
Pressure Converter
Enter a value and select units to convert.
Converted Value
1 Pa = 0.000145 PSIWhat This Pressure Converter Supports Across Applications
This tool covers PSI, the standard pressure unit for tire pressure and many everyday applications in the United States, alongside bar, which is widely used across Europe for tire pressure, tank pressure, and industrial applications. It also handles pascal and kilopascal, the official SI standard pressure units, as well as atmosphere and millimeters of mercury, both commonly used in scientific and medical contexts including blood pressure and weather barometric readings.
Common Pressure Conversions Searched For Regularly
One bar equals approximately 14.5 PSI, an essential conversion for anyone checking a European-specified tire pressure against a US tire gauge reading in PSI. One standard atmosphere equals exactly 101.325 kilopascals, a fundamental reference value used throughout scientific and engineering pressure calculations. One PSI equals approximately 6.895 kilopascals, a conversion frequently needed in industrial and manufacturing specifications.
| From | To | Multiply By |
|---|---|---|
| Bar | PSI | 14.5038 |
| PSI | Bar | 0.0689476 |
| Atm | Pascal | 101325 |
| Pascal | PSI | 0.000145038 |
| Kilopascal | PSI | 0.145038 |
| PSI | Atm | 0.068046 |
How to Use This Pressure Converter
Enter the pressure value you need converted into the input field. Select the unit you are converting from, choosing between PSI, bar, pascal, atmosphere, or mmHg. Then select your target unit. The converted result appears instantly, calculated using precise standardized conversion factors suitable for tire pressure checks, HVAC work, and more technical scientific or engineering applications.
Why Tire Pressure Conversion Matters for International Vehicle Owners
Vehicles manufactured for different regional markets often specify recommended tire pressure using different units, with European vehicles commonly using bar while American vehicles typically use PSI. Anyone maintaining a vehicle originally specified for a different market, or using a tire gauge calibrated in a different unit than the vehicle's manufacturer specification, benefits significantly from a quick, reliable pressure converter to avoid under-inflating or over-inflating their tires.
Pro Tip: Most passenger car tires require between 30–35 PSI (2.1–2.4 bar). Always check your vehicle's manual or door placard for the exact recommended pressure.
Pressure Conversion in Scientific and Medical Contexts
Beyond automotive use, pressure conversion comes up regularly in scientific and medical fields, where atmospheric pressure, blood pressure readings in mmHg, and industrial gas pressure specifications frequently need to be compared or converted between different standard units depending on the specific equipment, region, or professional convention being used.
Frequently Asked Questions
Divide the PSI value by approximately 14.5 to get the equivalent pressure in bar, a conversion commonly needed when comparing European tire pressure specifications against a US PSI-based tire gauge.
Standard atmospheric pressure is exactly 101.325 kilopascals, equal to approximately 14.7 PSI or exactly 1 atmosphere, serving as a fundamental reference value across scientific pressure calculations.
Yes, it works well for converting between bar, commonly used on European vehicle tire specifications, and PSI, the standard unit on most US tire gauges.
Historical and regional adoption patterns led to different standard units becoming common in different places, with the US commonly using PSI and most of Europe and the scientific community using bar and pascal.
Yes, millimeters of mercury, commonly abbreviated mmHg and used for blood pressure readings, is included alongside the more industrial and automotive pressure units this tool supports.