Pressure Converter
Convert pressure between pascals, bar, psi, atm, mmHg, and kilopascals. Useful for meteorology, hydraulics, pneumatics, and tire pressure conversions.
Pascal (Pa)
101325
Kilopascal (kPa)
101.325
Bar
1.01325
Atmosphere (atm)
1
PSI
14.695949
Torr (mmHg)
759.99989
How to use the pressure converter
Pick the input unit; the rest scale through pascals.
Formula & explanation
1 atm = 101325 Pa = 1.01325 bar = 14.696 psi.
Examples
Sea-level pressure ≈ 1 atm ≈ 1.013 bar.
Frequently asked questions
- How many PSI is 1 bar?
- 1 bar equals approximately 14.504 PSI.
- What is the difference between bar and atm?
- 1 atmosphere (atm) is approximately 1.01325 bar. They are very close — standard sea-level pressure is defined as 1 atm or 1.01325 bar.
- What does PSI stand for?
- PSI stands for pounds per square inch, the most common pressure unit used in the United States for tire pressure, hydraulics, and gas cylinders.
- How do I convert psi to kPa?
- Multiply PSI by 6.89476. For example, 30 PSI × 6.89476 ≈ 206.8 kPa.
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