Convert BAR to PSI, Free
Type any BAR value and see the PSI result instantly. No button press needed.
How to convert BAR to PSI
Bar and PSI (pounds per square inch) are the two most common pressure units in everyday engineering and industrial work. Bar dominates in European equipment specifications, hydraulic systems, and meteorological readings, while PSI is standard for tire pressure, compressed air tools, and plumbing specs in the US and UK. The conversion factor is 1 bar = 14.5038 PSI.
The tool calculates the result instantly as you type using a straightforward formula: PSI = bar x 14.5038. There is nothing to install or configure, and the calculation runs locally in your browser with no server round-trip.
Enter the pressure in bar
Type the bar value into the input field. Decimals work fine for precision readings like 2.5 bar or 0.83 bar.
Read the PSI result
The equivalent in PSI appears immediately. For example, 3 bar = 43.5 PSI.
Copy or note the value
Highlight the output and copy it for use in your specifications, work order, or calibration sheet.
Reverse the conversion if needed
Switch direction to convert PSI back to bar when you are working from an imperial specification and need metric output.
Frequently asked questions
How many PSI is 1 bar?
1 bar equals 14.5038 PSI. Conversely, 1 PSI equals 0.0689476 bar.
What is normal atmospheric pressure in bar and PSI?
Standard atmospheric pressure is 1.01325 bar, which equals 14.696 PSI. Many pressure gauges read 0 bar / 0 PSI at atmospheric pressure (gauge pressure) rather than at vacuum.
What is the typical tire pressure in bar?
Car tires are usually inflated to 2.0 to 2.5 bar (29 to 36 PSI). Always check the label inside your driver's door for the manufacturer's recommended value.
Is bar the same as atmosphere (atm)?
Not quite. 1 atmosphere (atm) = 1.01325 bar. They are very close but not equal. For precision engineering work, be careful which unit is specified.
Is this gauge pressure or absolute pressure?
The converter works with any pressure value you enter. Whether it is gauge (relative to atmosphere) or absolute depends entirely on what your source measurement represents. The arithmetic is the same.