• Pressure (दाब ) = Force/ Area
  • Unit
    • SI Unit – N/m2  or  Pascal (Pa) – Named after Blaise Pascal
      • (1 Pa = 1 N/m²)
    • Atmosphere (atm) ;
      • 1 atm =  1.013 x 105 Pa
      • 1 atm = 760 mmHg
    • Pound per square inch (PSI)
    • Bar ; 1 bar = 105 pascal
    • millimetre of mercury (mmHg)