Pressure Converter: inHg, Pa, bar, atm, psi

Elevate your aviation and aerospace calculations with our dynamic Pressure Converter tool. Seamlessly convert between key pressure units, such as Inches of Mercury (inHg), Millimeters of Mercury (mmHg), Pascal (Pa), HectoPascal (hPa) or Millibar (mb), Bar (bar), Atmosphere (atm), and Pound per Square Inch (psi).

The dynamic functionality of our tools ensures real-time adjustments, providing accuracy and efficiency for professionals in the aviation and aerospace industries.

The SI unit of pressure is the Pascal (Pa). One Pascal is equal to one Newton of force applied over an area of one square meter.

Hectopascal (hPa) is the SI unit of pressure and millibar (mb) is a c.g.s. unit of pressure. They are both equal. In other words, 1 hPa = 1 mb.

Pressure Conversion Formulas

  • Inches of Mercury (inHg):
    • Millimeters of Mercury (mmHg) = inHg × 25.4
    • Pascal (Pa) = inHg × 3386.39
    • HectoPascal (hPa) = inHg × 33.8639
    • Bar (bar) = inHg × 0.0334211
    • Atmosphere (atm) = inHg × 0.0334211
    • Pound/Square Inch (psi) = inHg × 0.491154
  • Millimeters of Mercury (mmHg):
    • Inches of Mercury (inHg) = mmHg / 25.4
    • Pascal (Pa) = mmHg × 133.322
    • HectoPascal (hPa) = mmHg × 1.33322
    • Bar (bar) = mmHg × 0.00131579
    • Atmosphere (atm) = mmHg × 0.00131579
    • Pound/Square Inch (psi) = mmHg × 0.0193368
  • Pascal (Pa):
    • Inches of Mercury (inHg) = Pa × 0.000295333
    • Millimeters of Mercury (mmHg) = Pa × 0.00750062
    • HectoPascal (hPa) = Pa × 0.01
    • Bar (bar) = Pa × 1e-5
    • Atmosphere (atm) = Pa × 9.86923e-6
    • Pound/Square Inch (psi) = Pa × 0.000145037
  • HectoPascal (hPa) or Millibar (mbar):
    • Inches of Mercury (inHg) = hPa × 0.0295299
    • Millimeters of Mercury (mmHg) = hPa × 750.062
    • Pascal (Pa) = hPa × 100
    • Bar (bar) = hPa × 0.001
    • Atmosphere (atm) = hPa × 0.00986923
    • Pound/Square Inch (psi) = hPa × 0.145037
  • Bar (bar):
    • Inches of Mercury (inHg) = bar × 29.52998
    • Millimeters of Mercury (mmHg) = bar × 750.0617
    • Pascal (Pa) = bar × 100000
    • HectoPascal (hPa) = bar × 1000
    • Atmosphere (atm) = bar × 0.986923
    • Pound/Square Inch (psi) = bar × 14.5038
  • Atmosphere (atm):
    • Inches of Mercury (inHg) = atm × 29.9212
    • Millimeters of Mercury (mmHg) = atm × 760
    • Pascal (Pa) = atm × 101325
    • HectoPascal (hPa) = atm × 1013.25
    • Bar (bar) = atm × 1.01325
    • Pound/Square Inch (psi) = atm × 14.696
  • Pound/Square Inch (psi):
    • Inches of Mercury (inHg) = psi × 2.03602
    • Millimeters of Mercury (mmHg) = psi × 51.7149
    • Pascal (Pa) = psi × 6894.76
    • HectoPascal (hPa) = psi × 68.9476
    • Bar (bar) = psi × 0.0689476
    • Atmosphere (atm) = psi × 0.068046

Equivalent Pressure

  • inHg
    • 1 inHg = 25.4 mmHg
    • 1 inHg = 3386.39 Pa
    • 1 inHg = 33.8639 hPa
    • 1 inHg = 0.0334211 bar
    • 1 inHg = 0.0334211 atm
    • 1 inHg = 0.491154 psi
  • mmHg
    • 1 mmHg = 0.0393701 inHg
    • 1 mmHg = 133.322 Pa
    • 1 mmHg = 1.33322 hPa
    • 1 mmHg = 0.00131579 bar
    • 1 mmHg = 0.00131579 atm
    • 1 mmHg = 0.0193368 psi
  • Pa
    • 1 Pa = 0.000295333 inHg
    • 1 Pa = 0.00750062 mmHg
    • 1 Pa = 0.01 hPa
    • 1 Pa = 1e-5 bar
    • 1 Pa = 9.86923e-6 atm
    • 1 Pa = 0.000145037 psi
  • hPa
    • 1 hPa = 0.0295299 inHg
    • 1 hPa = 750.062 mmHg
    • 1 hPa = 100 Pa
    • 1 hPa = 0.001 bar
    • 1 hPa = 0.00986923 atm
    • 1 hPa = 0.145037 psi
  • Bar
    • 1 bar = 29.52998 inHg
    • 1 bar = 750.0617 mmHg
    • 1 bar = 100000 Pa
    • 1 bar = 1000 hPa
    • 1 bar = 0.986923 atm
    • 1 bar = 14.5038 psi
  • Atm
    • 1 atm = 29.9212 inHg
    • 1 atm = 760 mmHg
    • 1 atm = 101325 Pa
    • 1 atm = 1013.25 hPa
    • 1 atm = 1.01325 bar
    • 1 atm = 14.696 psi
  • PSI
    • 1 psi = 2.03602 inHg
    • 1 psi = 51.7149 mmHg
    • 1 psi = 6894.76 Pa
    • 1 psi = 68.9476 hPa
    • 1 psi = 0.0689476 bar
    • 1 psi = 0.068046 atm