Free Pressure Converter โ PSI, Bar, kPa, atm
Convert between units of pressure
Quick Reference
| Value | Equivalent |
|---|---|
| 1 atm | 101,325 Pa / 1.01325 bar / 14.696 psi / 760 mmHg |
| 1 bar | 100,000 Pa / 0.986923 atm / 14.5038 psi |
| 1 psi | 6894.76 Pa / 0.0689476 bar / 0.068046 atm |
| 1 kPa | 1000 Pa / 0.01 bar / 0.145038 psi |
| Sea level pressure | 1 atm / 101.325 kPa / 1013.25 mbar |
How Do I Convert Pressure Units?
Pressure conversion is essential for automotive (tire pressure in PSI), weather (atmospheric pressure in mbar/hPa), diving (ATM), and industrial applications (bar/kPa). The SI unit is Pascal, but PSI, bar, and atm are far more common in everyday use.
How Do I Convert PSI to Bar?
Formula
PSI รท 14.5038 = bar
Example
32 PSI รท 14.5038 = 2.206 bar
Common Pressure Conversions
- โถ 1 atmosphere = 101,325 Pa = 14.696 PSI = 1.01325 bar
- โถ 1 bar = 14.5038 PSI = 100,000 Pa
- โถ Standard tire pressure: 30-35 PSI = 2.07-2.41 bar
- โถ 1 Torr = 1 mmHg = 133.322 Pa
What Tyre Pressure Should I Use?
Check the sticker on your driver's door jamb or fuel filler cap for the manufacturer's recommendation. Most passenger cars use 30-35 PSI (2.1-2.4 bar). Under-inflation increases fuel consumption and tyre wear, while over-inflation reduces grip.
How Do I Convert PSI to Bar?
Divide the PSI value by 14.504 to get bar, or multiply PSI by 0.0689. For example, 32 PSI ร 0.0689 = 2.21 bar. European tyre gauges typically display bar, while US gauges show PSI.