Online calculator to accurately transform pressure units like Pascal, Bar, ATM, and PSI.
Pressure is the force per unit area. In the SI, the base unit is the Pascal (Pa = 1 N/m²). Common units: Bar, Atmosphere (ATM), and PSI (pound-force per square inch). For car tires, recommended pressure is often 30–35 PSI (2.07–2.41 Bar). In the industry, Bar and MPa are standard for boilers and compressors. In meteorology, hPa (hectopascal) is used: 1 hPa = 100 Pa. Standard pressure at sea level: 101,325 Pa = 1 ATM = 1.01325 Bar = 14.696 PSI.
Pound per Square Inch, common for measuring tire pressure.
1 Bar is equivalent to approximately 0.9869 ATM.
The Pascal (Pa) is the base unit of the International System.
1 Atmosphere (ATM) equals 101,325 Pascals.
Yes, the conversion from PSI to Bar or ATM is exact for this purpose.